forked from OSchip/llvm-project
941 lines
37 KiB
LLVM
941 lines
37 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; TODO: The old pass manager cgscc run is disabled as it causes a crash on windows which is under investigation: http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/23151
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; opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
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; TEST 1 - negative.
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; void *G;
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; void *foo(){
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; void *V = malloc(4);
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; G = V;
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; return V;
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; }
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@G = external global i8*
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define i8* @foo() {
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; CHECK-LABEL: define {{[^@]+}}@foo() {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: store i8* [[TMP1]], i8** @G, align 8
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; CHECK-NEXT: ret i8* [[TMP1]]
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;
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%1 = tail call noalias i8* @malloc(i64 4)
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store i8* %1, i8** @G, align 8
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ret i8* %1
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}
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declare noalias i8* @malloc(i64)
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; TEST 2
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; call noalias function in return instruction.
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define i8* @return_noalias(){
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; CHECK-LABEL: define {{[^@]+}}@return_noalias() {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: ret i8* [[TMP1]]
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;
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%1 = tail call noalias i8* @malloc(i64 4)
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ret i8* %1
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}
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define void @nocapture(i8* %a){
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; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
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; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@nocapture
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; NOT_CGSCC_NPM-SAME: (i8* nocapture nofree readnone [[A:%.*]]) [[ATTR0:#.*]] {
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; NOT_CGSCC_NPM-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@nocapture
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; IS__CGSCC____-SAME: (i8* nocapture nofree readnone [[A:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC____-NEXT: ret void
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;
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ret void
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}
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define i8* @return_noalias_looks_like_capture(){
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; CHECK-LABEL: define {{[^@]+}}@return_noalias_looks_like_capture() {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: ret i8* [[TMP1]]
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;
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%1 = tail call noalias i8* @malloc(i64 4)
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call void @nocapture(i8* %1)
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ret i8* %1
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}
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define i16* @return_noalias_casted(){
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; CHECK-LABEL: define {{[^@]+}}@return_noalias_casted() {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: [[C:%.*]] = bitcast i8* [[TMP1]] to i16*
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; CHECK-NEXT: ret i16* [[C]]
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;
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%1 = tail call noalias i8* @malloc(i64 4)
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%c = bitcast i8* %1 to i16*
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ret i16* %c
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}
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declare i8* @alias()
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; TEST 3
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define i8* @call_alias(){
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; CHECK-LABEL: define {{[^@]+}}@call_alias() {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call i8* @alias()
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; CHECK-NEXT: ret i8* [[TMP1]]
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;
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%1 = tail call i8* @alias()
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ret i8* %1
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}
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; TEST 4
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; void *baz();
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; void *foo(int a);
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;
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; void *bar() {
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; foo(0);
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; return baz();
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; }
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;
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; void *foo(int a) {
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; if (a)
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; bar();
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; return malloc(4);
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; }
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define i8* @bar() nounwind uwtable {
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; CHECK: Function Attrs: nounwind uwtable
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; CHECK-LABEL: define {{[^@]+}}@bar
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; CHECK-SAME: () [[ATTR1:#.*]] {
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; CHECK-NEXT: [[TMP1:%.*]] = tail call i8* (...) @baz() [[ATTR2:#.*]]
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; CHECK-NEXT: ret i8* [[TMP1]]
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;
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%1 = tail call i8* (...) @baz()
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ret i8* %1
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}
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define i8* @foo1(i32 %0) nounwind uwtable {
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; CHECK: Function Attrs: nounwind uwtable
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; CHECK-LABEL: define {{[^@]+}}@foo1
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; CHECK-SAME: (i32 [[TMP0:%.*]]) [[ATTR1]] {
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP0]], 0
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; CHECK-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
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; CHECK: 3:
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; CHECK-NEXT: [[TMP4:%.*]] = tail call i8* (...) @baz() [[ATTR2]]
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; CHECK-NEXT: br label [[TMP5]]
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; CHECK: 5:
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; CHECK-NEXT: [[TMP6:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: ret i8* [[TMP6]]
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;
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%2 = icmp eq i32 %0, 0
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br i1 %2, label %5, label %3
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3: ; preds = %1
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%4 = tail call i8* (...) @baz()
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br label %5
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5: ; preds = %1, %3
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%6 = tail call noalias i8* @malloc(i64 4)
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ret i8* %6
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}
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declare i8* @baz(...) nounwind uwtable
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; TEST 5
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; Returning global pointer. Should not be noalias.
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define i8** @getter() {
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; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
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; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@getter
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; NOT_CGSCC_NPM-SAME: () [[ATTR0]] {
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; NOT_CGSCC_NPM-NEXT: ret i8** @G
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@getter
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; IS__CGSCC____-SAME: () [[ATTR0]] {
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; IS__CGSCC____-NEXT: ret i8** @G
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;
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ret i8** @G
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}
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; Returning global pointer. Should not be noalias.
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define i8** @calle1(){
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; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
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; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@calle1
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; NOT_CGSCC_NPM-SAME: () [[ATTR0]] {
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; NOT_CGSCC_NPM-NEXT: ret i8** @G
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@calle1
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; IS__CGSCC____-SAME: () [[ATTR0]] {
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; IS__CGSCC____-NEXT: ret i8** @G
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;
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%1 = call i8** @getter()
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ret i8** %1
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}
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; TEST 6
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declare noalias i8* @strdup(i8* nocapture) nounwind
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define i8* @test6() nounwind uwtable ssp {
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; CHECK: Function Attrs: nounwind ssp uwtable
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; CHECK-LABEL: define {{[^@]+}}@test6
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; CHECK-SAME: () [[ATTR3:#.*]] {
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; CHECK-NEXT: [[X:%.*]] = alloca [2 x i8], align 1
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 0
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; CHECK-NEXT: store i8 97, i8* [[ARRAYIDX]], align 1
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; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 1
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; CHECK-NEXT: store i8 0, i8* [[ARRAYIDX1]], align 1
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; CHECK-NEXT: [[CALL:%.*]] = call noalias i8* @strdup(i8* nocapture noundef nonnull dereferenceable(2) [[ARRAYIDX]]) [[ATTR2]]
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; CHECK-NEXT: ret i8* [[CALL]]
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;
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%x = alloca [2 x i8], align 1
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%arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 0
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store i8 97, i8* %arrayidx, align 1
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%arrayidx1 = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 1
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store i8 0, i8* %arrayidx1, align 1
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%call = call noalias i8* @strdup(i8* %arrayidx) nounwind
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ret i8* %call
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}
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; TEST 7
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define i8* @test7() nounwind {
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; CHECK: Function Attrs: nounwind
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; CHECK-LABEL: define {{[^@]+}}@test7
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; CHECK-SAME: () [[ATTR2]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = call noalias i8* @malloc(i64 noundef 4) [[ATTR2]]
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i8* [[A]], null
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; CHECK-NEXT: br i1 [[TOBOOL]], label [[RETURN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: store i8 7, i8* [[A]], align 1
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i8* [ [[A]], [[IF_END]] ], [ null, [[ENTRY:%.*]] ]
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; CHECK-NEXT: ret i8* [[RETVAL_0]]
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;
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entry:
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%A = call noalias i8* @malloc(i64 4) nounwind
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%tobool = icmp eq i8* %A, null
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br i1 %tobool, label %return, label %if.end
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if.end:
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store i8 7, i8* %A
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br label %return
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return:
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%retval.0 = phi i8* [ %A, %if.end ], [ null, %entry ]
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ret i8* %retval.0
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}
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; TEST 8
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define i8* @test8(i32* %0) nounwind uwtable {
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; CHECK: Function Attrs: nounwind uwtable
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; CHECK-LABEL: define {{[^@]+}}@test8
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; CHECK-SAME: (i32* [[TMP0:%.*]]) [[ATTR1]] {
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; CHECK-NEXT: [[TMP2:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32* [[TMP0]], null
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; CHECK-NEXT: br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
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; CHECK: 4:
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; CHECK-NEXT: store i8 10, i8* [[TMP2]], align 1
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; CHECK-NEXT: br label [[TMP5]]
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; CHECK: 5:
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; CHECK-NEXT: ret i8* [[TMP2]]
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;
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%2 = tail call noalias i8* @malloc(i64 4)
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%3 = icmp ne i32* %0, null
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br i1 %3, label %4, label %5
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4: ; preds = %1
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store i8 10, i8* %2
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br label %5
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5: ; preds = %1, %4
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ret i8* %2
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}
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; TEST 9
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; Simple Argument Test
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declare void @use_i8(i8* nocapture)
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define internal void @test9a(i8* %a, i8* %b) {
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; CHECK-LABEL: define {{[^@]+}}@test9a() {
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; CHECK-NEXT: call void @use_i8(i8* noalias nocapture noundef align 536870912 null)
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; CHECK-NEXT: ret void
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;
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call void @use_i8(i8* null)
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ret void
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}
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define internal void @test9b(i8* %a, i8* %b) {
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; FIXME: %b should be noalias
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; CHECK-LABEL: define {{[^@]+}}@test9b
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; CHECK-SAME: (i8* noalias nocapture [[A:%.*]], i8* nocapture [[B:%.*]]) {
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; CHECK-NEXT: call void @use_i8(i8* noalias nocapture [[A]])
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; CHECK-NEXT: call void @use_i8(i8* nocapture [[B]])
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; CHECK-NEXT: ret void
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;
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call void @use_i8(i8* %a)
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call void @use_i8(i8* %b)
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ret void
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}
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define internal void @test9c(i8* %a, i8* %b, i8* %c) {
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; CHECK-LABEL: define {{[^@]+}}@test9c
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; CHECK-SAME: (i8* noalias nocapture [[A:%.*]], i8* nocapture [[B:%.*]], i8* nocapture [[C:%.*]]) {
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; CHECK-NEXT: call void @use_i8(i8* noalias nocapture [[A]])
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; CHECK-NEXT: call void @use_i8(i8* nocapture [[B]])
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; CHECK-NEXT: call void @use_i8(i8* nocapture [[C]])
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; CHECK-NEXT: ret void
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;
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call void @use_i8(i8* %a)
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call void @use_i8(i8* %b)
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call void @use_i8(i8* %c)
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ret void
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}
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define void @test9_helper(i8* %a, i8* %b) {
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; CHECK-LABEL: define {{[^@]+}}@test9_helper
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; CHECK-SAME: (i8* nocapture [[A:%.*]], i8* nocapture [[B:%.*]]) {
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; CHECK-NEXT: tail call void @test9a()
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; CHECK-NEXT: tail call void @test9a()
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; CHECK-NEXT: tail call void @test9b(i8* noalias nocapture [[A]], i8* nocapture [[B]])
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; CHECK-NEXT: tail call void @test9b(i8* noalias nocapture [[B]], i8* noalias nocapture [[A]])
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; CHECK-NEXT: tail call void @test9c(i8* noalias nocapture [[A]], i8* nocapture [[B]], i8* nocapture [[B]])
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; CHECK-NEXT: tail call void @test9c(i8* noalias nocapture [[B]], i8* noalias nocapture [[A]], i8* noalias nocapture [[A]])
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; CHECK-NEXT: ret void
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;
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tail call void @test9a(i8* noalias %a, i8* %b)
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tail call void @test9a(i8* noalias %b, i8* noalias %a)
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tail call void @test9b(i8* noalias %a, i8* %b)
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tail call void @test9b(i8* noalias %b, i8* noalias %a)
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tail call void @test9c(i8* noalias %a, i8* %b, i8* %b)
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tail call void @test9c(i8* noalias %b, i8* noalias %a, i8* noalias %a)
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ret void
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}
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; TEST 10
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; Simple CallSite Test
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declare void @test10_helper_1(i8* %a)
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define void @test10_helper_2(i8* noalias %a) {
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; CHECK-LABEL: define {{[^@]+}}@test10_helper_2
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; CHECK-SAME: (i8* noalias [[A:%.*]]) {
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; CHECK-NEXT: tail call void @test10_helper_1(i8* [[A]])
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; CHECK-NEXT: ret void
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;
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tail call void @test10_helper_1(i8* %a)
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ret void
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}
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define void @test10(i8* noalias %a) {
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; CHECK-LABEL: define {{[^@]+}}@test10
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; CHECK-SAME: (i8* noalias [[A:%.*]]) {
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; CHECK-NEXT: tail call void @test10_helper_1(i8* [[A]])
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; CHECK-NEXT: tail call void @test10_helper_2(i8* noalias [[A]])
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; CHECK-NEXT: ret void
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;
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; FIXME: missing noalias
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tail call void @test10_helper_1(i8* %a)
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tail call void @test10_helper_2(i8* %a)
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ret void
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}
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; TEST 11
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; CallSite Test
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declare void @test11_helper(i8* %a, i8 *%b)
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define void @test11(i8* noalias %a) {
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; CHECK-LABEL: define {{[^@]+}}@test11
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; CHECK-SAME: (i8* noalias [[A:%.*]]) {
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; CHECK-NEXT: tail call void @test11_helper(i8* [[A]], i8* [[A]])
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; CHECK-NEXT: ret void
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;
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tail call void @test11_helper(i8* %a, i8* %a)
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ret void
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}
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; TEST 12
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; CallSite Argument
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declare void @use_nocapture(i8* nocapture)
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declare void @use(i8*)
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define void @test12_1() {
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; CHECK-LABEL: define {{[^@]+}}@test12_1() {
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; CHECK-NEXT: [[A:%.*]] = alloca i8, align 4
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; CHECK-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[B]])
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[B]])
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; CHECK-NEXT: ret void
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;
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%A = alloca i8, align 4
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%B = tail call noalias i8* @malloc(i64 4)
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tail call void @use_nocapture(i8* %A)
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tail call void @use_nocapture(i8* %A)
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tail call void @use_nocapture(i8* %B)
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tail call void @use_nocapture(i8* %B)
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ret void
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}
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define void @test12_2(){
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; CHECK-LABEL: define {{[^@]+}}@test12_2() {
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|
; CHECK-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[A]])
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; CHECK-NEXT: tail call void @use_nocapture(i8* noalias nocapture [[A]])
|
|
; CHECK-NEXT: tail call void @use(i8* [[A]])
|
|
; CHECK-NEXT: tail call void @use_nocapture(i8* nocapture [[A]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
; FIXME: This should be @use_nocapture(i8* noalias [[A]])
|
|
; FIXME: This should be @use_nocapture(i8* noalias nocapture [[A]])
|
|
%A = tail call noalias i8* @malloc(i64 4)
|
|
tail call void @use_nocapture(i8* %A)
|
|
tail call void @use_nocapture(i8* %A)
|
|
tail call void @use(i8* %A)
|
|
tail call void @use_nocapture(i8* %A)
|
|
ret void
|
|
}
|
|
|
|
declare void @two_args(i8* nocapture , i8* nocapture)
|
|
define void @test12_3(){
|
|
; CHECK-LABEL: define {{[^@]+}}@test12_3() {
|
|
; CHECK-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; CHECK-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%A = tail call noalias i8* @malloc(i64 4)
|
|
tail call void @two_args(i8* %A, i8* %A)
|
|
ret void
|
|
}
|
|
|
|
define void @test12_4(){
|
|
; IS________OPM-LABEL: define {{[^@]+}}@test12_4() {
|
|
; IS________OPM-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; IS________OPM-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; IS________OPM-NEXT: [[A_0:%.*]] = getelementptr i8, i8* [[A]], i64 0
|
|
; IS________OPM-NEXT: [[A_1:%.*]] = getelementptr i8, i8* [[A]], i64 1
|
|
; IS________OPM-NEXT: [[B_0:%.*]] = getelementptr i8, i8* [[B]], i64 0
|
|
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[B]])
|
|
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_0]])
|
|
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_1]])
|
|
; IS________OPM-NEXT: tail call void @two_args(i8* nocapture [[A_0]], i8* nocapture [[B_0]])
|
|
; IS________OPM-NEXT: ret void
|
|
;
|
|
; NOT_TUNIT_OPM-LABEL: define {{[^@]+}}@test12_4() {
|
|
; NOT_TUNIT_OPM-NEXT: [[A:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; NOT_TUNIT_OPM-NEXT: [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; NOT_TUNIT_OPM-NEXT: [[A_0:%.*]] = getelementptr i8, i8* [[A]], i64 0
|
|
; NOT_TUNIT_OPM-NEXT: [[A_1:%.*]] = getelementptr i8, i8* [[A]], i64 1
|
|
; NOT_TUNIT_OPM-NEXT: [[B_0:%.*]] = getelementptr i8, i8* [[B]], i64 0
|
|
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* noalias nocapture [[A]], i8* noalias nocapture [[B]])
|
|
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_0]])
|
|
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A]], i8* nocapture [[A_1]])
|
|
; NOT_TUNIT_OPM-NEXT: tail call void @two_args(i8* nocapture [[A_0]], i8* nocapture [[B_0]])
|
|
; NOT_TUNIT_OPM-NEXT: ret void
|
|
;
|
|
%A = tail call noalias i8* @malloc(i64 4)
|
|
%B = tail call noalias i8* @malloc(i64 4)
|
|
%A_0 = getelementptr i8, i8* %A, i64 0
|
|
%A_1 = getelementptr i8, i8* %A, i64 1
|
|
%B_0 = getelementptr i8, i8* %B, i64 0
|
|
|
|
tail call void @two_args(i8* %A, i8* %B)
|
|
|
|
tail call void @two_args(i8* %A, i8* %A_0)
|
|
|
|
tail call void @two_args(i8* %A, i8* %A_1)
|
|
|
|
; FIXME: This should be @two_args(i8* noalias nocapture %A_0, i8* noalias nocapture %B_0)
|
|
tail call void @two_args(i8* %A_0, i8* %B_0)
|
|
ret void
|
|
}
|
|
|
|
; TEST 13
|
|
define void @use_i8_internal(i8* %a) {
|
|
; CHECK-LABEL: define {{[^@]+}}@use_i8_internal
|
|
; CHECK-SAME: (i8* nocapture [[A:%.*]]) {
|
|
; CHECK-NEXT: call void @use_i8(i8* nocapture [[A]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
call void @use_i8(i8* %a)
|
|
ret void
|
|
}
|
|
|
|
define void @test13_use_noalias(){
|
|
; CHECK-LABEL: define {{[^@]+}}@test13_use_noalias() {
|
|
; CHECK-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; CHECK-NEXT: [[C1:%.*]] = bitcast i8* [[M1]] to i16*
|
|
; CHECK-NEXT: [[C2:%.*]] = bitcast i16* [[C1]] to i8*
|
|
; CHECK-NEXT: call void @use_i8_internal(i8* noalias nocapture [[C2]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test13_use_noalias()
|
|
; IS__CGSCC_OPM-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 4)
|
|
; IS__CGSCC_OPM-NEXT: [[C1:%.*]] = bitcast i8* [[M1]] to i16*
|
|
; IS__CGSCC_OPM-NEXT: [[C2:%.*]] = bitcast i16* [[C1]] to i8*
|
|
; IS__CGSCC_OPM-NEXT: call void @use_i8_internal(i8* noalias [[C2]])
|
|
; IS__CGSCC_OPM-NEXT: ret void
|
|
%m1 = tail call noalias i8* @malloc(i64 4)
|
|
%c1 = bitcast i8* %m1 to i16*
|
|
%c2 = bitcast i16* %c1 to i8*
|
|
call void @use_i8_internal(i8* %c2)
|
|
ret void
|
|
}
|
|
|
|
define void @test13_use_alias(){
|
|
; CHECK-LABEL: define {{[^@]+}}@test13_use_alias() {
|
|
; CHECK-NEXT: [[M1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
|
|
; CHECK-NEXT: [[C1:%.*]] = bitcast i8* [[M1]] to i16*
|
|
; CHECK-NEXT: [[C2A:%.*]] = bitcast i16* [[C1]] to i8*
|
|
; CHECK-NEXT: [[C2B:%.*]] = bitcast i16* [[C1]] to i8*
|
|
; CHECK-NEXT: call void @use_i8_internal(i8* nocapture [[C2A]])
|
|
; CHECK-NEXT: call void @use_i8_internal(i8* nocapture [[C2B]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%m1 = tail call noalias i8* @malloc(i64 4)
|
|
%c1 = bitcast i8* %m1 to i16*
|
|
%c2a = bitcast i16* %c1 to i8*
|
|
%c2b = bitcast i16* %c1 to i8*
|
|
call void @use_i8_internal(i8* %c2a)
|
|
call void @use_i8_internal(i8* %c2b)
|
|
ret void
|
|
}
|
|
|
|
; TEST 14 i2p casts
|
|
define internal i32 @p2i(i32* %arg) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@p2i
|
|
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree readnone [[ARG:%.*]]) [[ATTR0]] {
|
|
; NOT_CGSCC_NPM-NEXT: [[P2I:%.*]] = ptrtoint i32* [[ARG]] to i32
|
|
; NOT_CGSCC_NPM-NEXT: ret i32 [[P2I]]
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@p2i
|
|
; IS__CGSCC____-SAME: (i32* noalias nofree readnone [[ARG:%.*]]) [[ATTR0]] {
|
|
; IS__CGSCC____-NEXT: [[P2I:%.*]] = ptrtoint i32* [[ARG]] to i32
|
|
; IS__CGSCC____-NEXT: ret i32 [[P2I]]
|
|
;
|
|
%p2i = ptrtoint i32* %arg to i32
|
|
ret i32 %p2i
|
|
}
|
|
|
|
define i32 @i2p(i32* %arg) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind readonly willreturn
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@i2p
|
|
; NOT_CGSCC_NPM-SAME: (i32* nofree readonly [[ARG:%.*]]) [[ATTR4:#.*]] {
|
|
; NOT_CGSCC_NPM-NEXT: [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) [[ATTR0]]
|
|
; NOT_CGSCC_NPM-NEXT: [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
|
|
; NOT_CGSCC_NPM-NEXT: [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
|
|
; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree readonly align 4 [[BC]]) [[ATTR4]]
|
|
; NOT_CGSCC_NPM-NEXT: ret i32 [[CALL]]
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@i2p
|
|
; IS__CGSCC____-SAME: (i32* nofree readonly [[ARG:%.*]]) [[ATTR4:#.*]] {
|
|
; IS__CGSCC____-NEXT: [[C:%.*]] = call i32 @p2i(i32* noalias nofree readnone [[ARG]]) [[ATTR10:#.*]]
|
|
; IS__CGSCC____-NEXT: [[I2P:%.*]] = inttoptr i32 [[C]] to i8*
|
|
; IS__CGSCC____-NEXT: [[BC:%.*]] = bitcast i8* [[I2P]] to i32*
|
|
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 @ret(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[BC]]) [[ATTR11:#.*]]
|
|
; IS__CGSCC____-NEXT: ret i32 [[CALL]]
|
|
;
|
|
%c = call i32 @p2i(i32* %arg)
|
|
%i2p = inttoptr i32 %c to i8*
|
|
%bc = bitcast i8* %i2p to i32*
|
|
%call = call i32 @ret(i32* %bc)
|
|
ret i32 %call
|
|
}
|
|
define internal i32 @ret(i32* %arg) {
|
|
; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@ret
|
|
; NOT_CGSCC_NPM-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) [[ATTR5:#.*]] {
|
|
; NOT_CGSCC_NPM-NEXT: [[L:%.*]] = load i32, i32* [[ARG]], align 4
|
|
; NOT_CGSCC_NPM-NEXT: ret i32 [[L]]
|
|
;
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@ret
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[ARG:%.*]]) [[ATTR5:#.*]] {
|
|
; IS__CGSCC____-NEXT: [[L:%.*]] = load i32, i32* [[ARG]], align 4
|
|
; IS__CGSCC____-NEXT: ret i32 [[L]]
|
|
;
|
|
%l = load i32, i32* %arg
|
|
ret i32 %l
|
|
}
|
|
|
|
; Test to propagate noalias where value is assumed to be no-capture in all the
|
|
; uses possibly executed before this callsite.
|
|
; IR referred from musl/src/strtod.c file
|
|
|
|
%struct._IO_FILE = type { i32, i8*, i8*, i32 (%struct._IO_FILE*)*, i8*, i8*, i8*, i8*, i32 (%struct._IO_FILE*, i8*, i32)*, i32 (%struct._IO_FILE*, i8*, i32)*, i64 (%struct._IO_FILE*, i64, i32)*, i8*, i32, %struct._IO_FILE*, %struct._IO_FILE*, i32, i32, i32, i16, i8, i8, i32, i32, i8*, i64, i8*, i8*, i8*, [4 x i8], i64, i64, %struct._IO_FILE*, %struct._IO_FILE*, %struct.__locale_struct*, [4 x i8] }
|
|
%struct.__locale_struct = type { [6 x %struct.__locale_map*] }
|
|
%struct.__locale_map = type opaque
|
|
|
|
; Function Attrs: nounwind optsize
|
|
define internal fastcc double @strtox(i8* %s, i8** %p, i32 %prec) unnamed_addr {
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@strtox
|
|
; NOT_CGSCC_NPM-SAME: (i8* [[S:%.*]]) unnamed_addr {
|
|
; NOT_CGSCC_NPM-NEXT: entry:
|
|
; NOT_CGSCC_NPM-NEXT: [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
|
|
; NOT_CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
|
|
; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]]) [[ATTR10:#.*]]
|
|
; NOT_CGSCC_NPM-NEXT: [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
|
|
; NOT_CGSCC_NPM-NEXT: call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
|
|
; NOT_CGSCC_NPM-NEXT: [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
|
|
; NOT_CGSCC_NPM-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]])
|
|
; NOT_CGSCC_NPM-NEXT: ret double [[CALL1]]
|
|
;
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@strtox
|
|
; IS__CGSCC____-SAME: (i8* noalias [[S:%.*]]) unnamed_addr {
|
|
; IS__CGSCC____-NEXT: entry:
|
|
; IS__CGSCC____-NEXT: [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
|
|
; IS__CGSCC____-NEXT: [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
|
|
; IS__CGSCC____-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]]) [[ATTR10]]
|
|
; IS__CGSCC____-NEXT: [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
|
|
; IS__CGSCC____-NEXT: call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
|
|
; IS__CGSCC____-NEXT: [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
|
|
; IS__CGSCC____-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]])
|
|
; IS__CGSCC____-NEXT: ret double [[CALL1]]
|
|
;
|
|
entry:
|
|
%f = alloca %struct._IO_FILE, align 8
|
|
%0 = bitcast %struct._IO_FILE* %f to i8*
|
|
call void @llvm.lifetime.start.p0i8(i64 144, i8* nonnull %0)
|
|
%call = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull %f, i8* %s)
|
|
call void @__shlim(%struct._IO_FILE* nonnull %f, i64 0)
|
|
%call1 = call double @__floatscan(%struct._IO_FILE* nonnull %f, i32 %prec, i32 1)
|
|
call void @llvm.lifetime.end.p0i8(i64 144, i8* nonnull %0)
|
|
|
|
ret double %call1
|
|
}
|
|
|
|
; Function Attrs: nounwind optsize
|
|
define dso_local double @strtod(i8* noalias %s, i8** noalias %p) {
|
|
; CHECK-LABEL: define {{[^@]+}}@strtod
|
|
; CHECK-SAME: (i8* noalias [[S:%.*]], i8** noalias nocapture nofree readnone [[P:%.*]]) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[CALL:%.*]] = tail call fastcc double @strtox(i8* noalias [[S]])
|
|
; CHECK-NEXT: ret double [[CALL]]
|
|
;
|
|
entry:
|
|
%call = tail call fastcc double @strtox(i8* %s, i8** %p, i32 1)
|
|
ret double %call
|
|
}
|
|
|
|
; Function Attrs: argmemonly nounwind willreturn
|
|
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
|
|
|
|
; Function Attrs: optsize
|
|
declare dso_local i32 @sh_fromstring(...) local_unnamed_addr
|
|
|
|
; Function Attrs: optsize
|
|
declare dso_local void @__shlim(%struct._IO_FILE*, i64) local_unnamed_addr
|
|
|
|
; Function Attrs: optsize
|
|
declare dso_local double @__floatscan(%struct._IO_FILE*, i32, i32) local_unnamed_addr
|
|
|
|
; Function Attrs: argmemonly nounwind willreturn
|
|
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
|
|
|
|
; Test 15
|
|
; propagate noalias to some callsite arguments that there is no possibly reachable capture before it
|
|
|
|
@alias_of_p = external global i32*
|
|
|
|
define void @make_alias(i32* %p) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@make_alias
|
|
; NOT_CGSCC_NPM-SAME: (i32* nofree writeonly [[P:%.*]]) [[ATTR7:#.*]] {
|
|
; NOT_CGSCC_NPM-NEXT: store i32* [[P]], i32** @alias_of_p, align 8
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@make_alias
|
|
; IS__CGSCC____-SAME: (i32* nofree writeonly [[P:%.*]]) [[ATTR7:#.*]] {
|
|
; IS__CGSCC____-NEXT: store i32* [[P]], i32** @alias_of_p, align 8
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
store i32* %p, i32** @alias_of_p
|
|
ret void
|
|
}
|
|
|
|
define void @only_store(i32* %p) {
|
|
; NOT_CGSCC_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@only_store
|
|
; NOT_CGSCC_NPM-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) [[ATTR8:#.*]] {
|
|
; NOT_CGSCC_NPM-NEXT: store i32 0, i32* [[P]], align 4
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@only_store
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]]) [[ATTR8:#.*]] {
|
|
; IS__CGSCC____-NEXT: store i32 0, i32* [[P]], align 4
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
store i32 0, i32* %p
|
|
ret void
|
|
}
|
|
|
|
define void @test15_caller(i32* noalias %p, i32 %c) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test15_caller
|
|
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
|
|
; NOT_CGSCC_NPM: if.then:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: br label [[IF_END]]
|
|
; NOT_CGSCC_NPM: if.end:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test15_caller
|
|
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
|
|
; IS__CGSCC____: if.then:
|
|
; IS__CGSCC____-NEXT: tail call void @only_store(i32* noalias nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12:#.*]]
|
|
; IS__CGSCC____-NEXT: br label [[IF_END]]
|
|
; IS__CGSCC____: if.end:
|
|
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
%tobool = icmp eq i32 %c, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
|
|
if.then:
|
|
tail call void @only_store(i32* %p)
|
|
br label %if.end
|
|
|
|
if.end:
|
|
tail call void @make_alias(i32* %p)
|
|
ret void
|
|
}
|
|
|
|
; Test 16
|
|
;
|
|
; __attribute__((noinline)) static void test16_sub(int * restrict p, int c1, int c2) {
|
|
; if (c1) {
|
|
; only_store(p);
|
|
; make_alias(p);
|
|
; }
|
|
; if (!c2) {
|
|
; only_store(p);
|
|
; }
|
|
; }
|
|
; void test16_caller(int * restrict p, int c) {
|
|
; test16_sub(p, c, c);
|
|
; }
|
|
;
|
|
; FIXME: this should be tail @only_store(i32* noalias %p)
|
|
; when test16_caller is called, c1 always equals to c2. (Note that linkage is internal)
|
|
; Therefore, only one of the two conditions of if statementes will be fulfilled.
|
|
|
|
define internal void @test16_sub(i32* noalias %p, i32 %c1, i32 %c2) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test16_sub
|
|
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) [[ATTR7]] {
|
|
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
|
|
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
|
|
; NOT_CGSCC_NPM: if.then:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* noalias nocapture nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: br label [[IF_END]]
|
|
; NOT_CGSCC_NPM: if.end:
|
|
; NOT_CGSCC_NPM-NEXT: [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
|
|
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL1]], label [[IF_THEN2:%.*]], label [[IF_END3:%.*]]
|
|
; NOT_CGSCC_NPM: if.then2:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: br label [[IF_END3]]
|
|
; NOT_CGSCC_NPM: if.end3:
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test16_sub
|
|
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C1:%.*]], i32 [[C2:%.*]]) [[ATTR7]] {
|
|
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C1]], 0
|
|
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
|
|
; IS__CGSCC____: if.then:
|
|
; IS__CGSCC____-NEXT: tail call void @only_store(i32* noalias nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: br label [[IF_END]]
|
|
; IS__CGSCC____: if.end:
|
|
; IS__CGSCC____-NEXT: [[TOBOOL1:%.*]] = icmp eq i32 [[C2]], 0
|
|
; IS__CGSCC____-NEXT: br i1 [[TOBOOL1]], label [[IF_THEN2:%.*]], label [[IF_END3:%.*]]
|
|
; IS__CGSCC____: if.then2:
|
|
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: br label [[IF_END3]]
|
|
; IS__CGSCC____: if.end3:
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
%tobool = icmp eq i32 %c1, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
tail call void @only_store(i32* %p)
|
|
tail call void @make_alias(i32* %p)
|
|
br label %if.end
|
|
if.end:
|
|
|
|
%tobool1 = icmp eq i32 %c2, 0
|
|
br i1 %tobool1, label %if.then2, label %if.end3
|
|
|
|
if.then2:
|
|
tail call void @only_store(i32* %p)
|
|
br label %if.end3
|
|
if.end3:
|
|
|
|
ret void
|
|
}
|
|
|
|
define void @test16_caller(i32* %p, i32 %c) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test16_caller
|
|
; NOT_CGSCC_NPM-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test16_caller
|
|
; IS__CGSCC____-SAME: (i32* nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; IS__CGSCC____-NEXT: tail call void @test16_sub(i32* noalias nofree writeonly [[P]], i32 [[C]], i32 [[C]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
tail call void @test16_sub(i32* %p, i32 %c, i32 %c)
|
|
ret void
|
|
}
|
|
|
|
; test 17
|
|
;
|
|
; only_store is not called after make_alias is called.
|
|
;
|
|
; void test17_caller(int* p, int c) {
|
|
; if(c) {
|
|
; make_alias(p);
|
|
; if(0 == 0) {
|
|
; goto l3;
|
|
; } else {
|
|
; goto l2;
|
|
; }
|
|
; }
|
|
; l2:
|
|
; only_store(p);
|
|
; l3:
|
|
; return;
|
|
; }
|
|
|
|
define void @test17_caller(i32* noalias %p, i32 %c) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test17_caller
|
|
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; NOT_CGSCC_NPM-NEXT: entry:
|
|
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
|
|
; NOT_CGSCC_NPM: l1:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: br label [[L3:%.*]]
|
|
; NOT_CGSCC_NPM: l2:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: br label [[L3]]
|
|
; NOT_CGSCC_NPM: l3:
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test17_caller
|
|
; IS__CGSCC____-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; IS__CGSCC____-NEXT: entry:
|
|
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
|
|
; IS__CGSCC____: l1:
|
|
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: br label [[L3:%.*]]
|
|
; IS__CGSCC____: l2:
|
|
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: br label [[L3]]
|
|
; IS__CGSCC____: l3:
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
entry:
|
|
%tobool = icmp eq i32 %c, 0
|
|
br i1 %tobool, label %l1, label %l2
|
|
|
|
l1:
|
|
tail call void @make_alias(i32* %p)
|
|
%tobool2 = icmp eq i32 0, 0
|
|
br i1 %tobool2, label %l3, label %l2
|
|
|
|
l2:
|
|
tail call void @only_store(i32* %p)
|
|
br label %l3
|
|
|
|
l3:
|
|
ret void
|
|
}
|
|
|
|
; test 18
|
|
; void test18_caller(int* p, int c) {
|
|
; if(c) {
|
|
; make_alias(p);
|
|
; noreturn();
|
|
; }
|
|
; only_store(p);
|
|
; return;
|
|
; }
|
|
|
|
define void @noreturn() {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@noreturn
|
|
; NOT_CGSCC_NPM-SAME: () [[ATTR9:#.*]] {
|
|
; NOT_CGSCC_NPM-NEXT: unreachable
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@noreturn
|
|
; IS__CGSCC____-SAME: () [[ATTR9:#.*]] {
|
|
; IS__CGSCC____-NEXT: unreachable
|
|
;
|
|
call void @noreturn()
|
|
ret void
|
|
}
|
|
|
|
define void @test18_caller(i32* noalias %p, i32 %c) {
|
|
; NOT_CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn writeonly
|
|
; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@test18_caller
|
|
; NOT_CGSCC_NPM-SAME: (i32* noalias nofree writeonly [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; NOT_CGSCC_NPM-NEXT: entry:
|
|
; NOT_CGSCC_NPM-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; NOT_CGSCC_NPM-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
|
|
; NOT_CGSCC_NPM: l1:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @make_alias(i32* nofree writeonly [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: unreachable
|
|
; NOT_CGSCC_NPM: l2:
|
|
; NOT_CGSCC_NPM-NEXT: tail call void @only_store(i32* nocapture nofree writeonly align 4 [[P]]) [[ATTR7]]
|
|
; NOT_CGSCC_NPM-NEXT: ret void
|
|
;
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test18_caller
|
|
; IS__CGSCC____-SAME: (i32* noalias nofree nonnull writeonly align 4 dereferenceable(4) [[P:%.*]], i32 [[C:%.*]]) [[ATTR7]] {
|
|
; IS__CGSCC____-NEXT: entry:
|
|
; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[C]], 0
|
|
; IS__CGSCC____-NEXT: br i1 [[TOBOOL]], label [[L1:%.*]], label [[L2:%.*]]
|
|
; IS__CGSCC____: l1:
|
|
; IS__CGSCC____-NEXT: tail call void @make_alias(i32* nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: unreachable
|
|
; IS__CGSCC____: l2:
|
|
; IS__CGSCC____-NEXT: tail call void @only_store(i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[P]]) [[ATTR12]]
|
|
; IS__CGSCC____-NEXT: ret void
|
|
;
|
|
entry:
|
|
%tobool = icmp eq i32 %c, 0
|
|
br i1 %tobool, label %l1, label %l2
|
|
|
|
l1:
|
|
tail call void @make_alias(i32* %p)
|
|
tail call void @noreturn()
|
|
br label %l2
|
|
|
|
l2:
|
|
tail call void @only_store(i32* %p)
|
|
ret void
|
|
}
|