forked from OSchip/llvm-project
287 lines
14 KiB
LLVM
287 lines
14 KiB
LLVM
; RUN: opt -mtriple=i386-pc-linux-gnu -inferattrs -basic-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 %s | FileCheck %s
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; CHECK-LABEL: Function: test_memcmp_const_size
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; CHECK: Just Ref: Ptr: i8* %a <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.1 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %b.gep.5 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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define i32 @test_memcmp_const_size(i8* noalias %a, i8* noalias %b) {
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entry:
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%res = tail call i32 @memcmp(i8* %a, i8* %b, i64 4)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i32 %res
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}
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; CHECK-LABEL: Function: test_memcmp_variable_size
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; CHECK: Just Ref: Ptr: i8* %a <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.1 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.5 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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define i32 @test_memcmp_variable_size(i8* noalias %a, i8* noalias %b, i64 %n) {
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entry:
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%res = tail call i32 @memcmp(i8* %a, i8* %b, i64 %n)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i32 %res
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}
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declare i32 @memcmp(i8*, i8*, i64)
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declare i32 @bcmp(i8*, i8*, i64)
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; CHECK-LABEL: Function: test_bcmp_const_size
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; CHECK: Just Ref: Ptr: i8* %a <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.1 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %b.gep.5 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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define i32 @test_bcmp_const_size(i8* noalias %a, i8* noalias %b) {
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entry:
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%res = tail call i32 @bcmp(i8* %a, i8* %b, i64 4)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i32 %res
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}
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; CHECK-LABEL: Function: test_bcmp_variable_size
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; CHECK: Just Ref: Ptr: i8* %a <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.1 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.5 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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define i32 @test_bcmp_variable_size(i8* noalias %a, i8* noalias %b, i64 %n) {
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entry:
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%res = tail call i32 @bcmp(i8* %a, i8* %b, i64 %n)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i32 %res
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}
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declare i8* @memchr(i8*, i32, i64)
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; CHECK-LABEL: Function: test_memchr_const_size
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; CHECK: Just Ref: Ptr: i8* %res <-> %res = call i8* @memchr(i8* %a, i32 42, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %a.gep.1 <-> %res = call i8* @memchr(i8* %a, i32 42, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = call i8* @memchr(i8* %a, i32 42, i64 4)
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define i8* @test_memchr_const_size(i8* noalias %a) {
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entry:
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%res = call i8* @memchr(i8* %a, i32 42, i64 4)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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ret i8* %res
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}
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declare i8* @memccpy(i8*, i8*, i32, i64)
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; CHECK-LABEL: Function: test_memccpy_const_size
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; CHECK: Just Mod: Ptr: i8* %a <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %b.gep.5 <-> %res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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define i8* @test_memccpy_const_size(i8* noalias %a, i8* noalias %b) {
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entry:
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%res = call i8* @memccpy(i8* %a, i8* %b, i32 42, i64 4)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i8* %res
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}
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declare i8* @strcat(i8*, i8*)
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define i8* @test_strcat_read_write_after(i8* noalias %a, i8* noalias %b) {
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; CHECK-LABEL: Function: test_strcat_read_write_after
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; CHECK: Both ModRef: Ptr: i8* %a <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %res <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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;
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entry:
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store i8 0, i8* %a
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store i8 2, i8* %b
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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%res = tail call i8* @strcat(i8* %a.gep.1, i8* %b.gep.1)
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i8* %res
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}
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declare i8* @strncat(i8*, i8*, i64)
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define i8* @test_strncat_read_write_after(i8* noalias %a, i8* noalias %b, i64 %n) {
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; CHECK-LABEL: Function: test_strncat_read_write_after
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; CHECK: Both ModRef: Ptr: i8* %a <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %res <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Both ModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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;
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entry:
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store i8 0, i8* %a
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store i8 2, i8* %b
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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%res = tail call i8* @strncat(i8* %a.gep.1, i8* %b.gep.1, i64 %n)
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i8* %res
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}
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declare i8* @strcpy(i8*, i8*)
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define i8* @test_strcpy_read_write_after(i8* noalias %a, i8* noalias %b) {
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; CHECK-LABEL: Function: test_strcpy_read_write_after
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; CHECK: Just Mod: Ptr: i8* %a <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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;
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entry:
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store i8 0, i8* %a
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store i8 2, i8* %b
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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%res = tail call i8* @strcpy(i8* %a.gep.1, i8* %b.gep.1)
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i8* %res
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}
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declare i8* @strncpy(i8*, i8*, i64)
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define i8* @test_strncpy_const_size(i8* noalias %a, i8* noalias %b) {
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; CHECK-LABEL: Function: test_strncpy_const_size
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; CHECK: Just Mod: Ptr: i8* %a <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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; CHECK-NEXT: NoModRef: Ptr: i8* %b.gep.5 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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;
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entry:
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%res = tail call i8* @strncpy(i8* %a, i8* %b, i64 4)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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%b.gep.1 = getelementptr i8, i8* %b, i32 1
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store i8 2, i8* %b.gep.1
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%b.gep.5 = getelementptr i8, i8* %b, i32 5
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store i8 3, i8* %b.gep.5
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ret i8* %res
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}
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define i8* @test_strncpy_variable_size(i8* noalias %a, i8* noalias %b, i64 %n) {
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; CHECK-LABEL: Function: test_strncpy_variable_size
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; CHECK: Just Mod: Ptr: i8* %a <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.1 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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; CHECK-NEXT: Just Ref: Ptr: i8* %b.gep.5 <-> %res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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;
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entry:
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%res = tail call i8* @strncpy(i8* %a, i8* %b, i64 %n)
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%a.gep.1 = getelementptr i8, i8* %a, i32 1
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store i8 0, i8* %a.gep.1
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%a.gep.5 = getelementptr i8, i8* %a, i32 5
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store i8 1, i8* %a.gep.5
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|
%b.gep.1 = getelementptr i8, i8* %b, i32 1
|
|
store i8 2, i8* %b.gep.1
|
|
%b.gep.5 = getelementptr i8, i8* %b, i32 5
|
|
store i8 3, i8* %b.gep.5
|
|
ret i8* %res
|
|
}
|
|
|
|
declare i8* @__memset_chk(i8* writeonly, i32, i64, i64)
|
|
|
|
; CHECK-LABEL: Function: test_memset_chk_const_size
|
|
define i8* @test_memset_chk_const_size(i8* noalias %a, i64 %n) {
|
|
; CHECK: Just Mod (MustAlias): Ptr: i8* %a <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 4, i64 %n)
|
|
; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 4, i64 %n)
|
|
; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 4, i64 %n)
|
|
; CHECK-NEXT: NoModRef: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 4, i64 %n)
|
|
;
|
|
entry:
|
|
%res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 4, i64 %n)
|
|
%a.gep.1 = getelementptr i8, i8* %a, i32 1
|
|
store i8 0, i8* %a.gep.1
|
|
%a.gep.5 = getelementptr i8, i8* %a, i32 5
|
|
store i8 1, i8* %a.gep.5
|
|
ret i8* %res
|
|
}
|
|
|
|
define i8* @test_memset_chk_variable_size(i8* noalias %a, i64 %n.1, i64 %n.2) {
|
|
; CHECK-LABEL: Function: test_memset_chk_variable_size
|
|
; CHECK: Just Mod (MustAlias): Ptr: i8* %a <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 %n.1, i64 %n.2)
|
|
; CHECK-NEXT: Just Mod: Ptr: i8* %res <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 %n.1, i64 %n.2)
|
|
; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.1 <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 %n.1, i64 %n.2)
|
|
; CHECK-NEXT: Just Mod: Ptr: i8* %a.gep.5 <-> %res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 %n.1, i64 %n.2)
|
|
;
|
|
entry:
|
|
%res = tail call i8* @__memset_chk(i8* %a, i32 0, i64 %n.1, i64 %n.2)
|
|
%a.gep.1 = getelementptr i8, i8* %a, i32 1
|
|
store i8 0, i8* %a.gep.1
|
|
%a.gep.5 = getelementptr i8, i8* %a, i32 5
|
|
store i8 1, i8* %a.gep.5
|
|
ret i8* %res
|
|
}
|