forked from OSchip/llvm-project
156 lines
6.1 KiB
LLVM
156 lines
6.1 KiB
LLVM
; RUN: opt -S -winehprepare -mtriple=x86_64-windows-msvc < %s | FileCheck %s
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; RUN: opt -S -winehprepare -mtriple=x86_64-windows-coreclr < %s | FileCheck %s
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; Test case based on this code:
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;
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; extern "C" int _abnormal_termination();
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; #pragma intrinsic(_abnormal_termination)
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; extern "C" int printf(const char *, ...);
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; extern "C" void may_crash() {
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; *(volatile int *)0 = 42;
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; }
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; int main() {
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; int myres = 0;
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; __try {
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; __try {
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; may_crash();
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; } __finally {
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; printf("inner finally %d\n", _abnormal_termination());
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; may_crash();
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; }
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; } __finally {
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; printf("outer finally %d\n", _abnormal_termination());
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; }
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; }
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;
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; Note that if the inner finally crashes, the outer finally still runs. There
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; is nothing like a std::terminate call in this situation.
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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@str_outer_finally = linkonce_odr unnamed_addr constant [18 x i8] c"outer finally %d\0A\00", align 1
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@str_inner_finally = linkonce_odr unnamed_addr constant [18 x i8] c"inner finally %d\0A\00", align 1
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; Function Attrs: nounwind uwtable
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define void @may_crash() #0 {
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entry:
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store volatile i32 42, i32* null, align 4
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ret void
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}
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; Function Attrs: uwtable
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define i32 @main() #1 personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
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entry:
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%myres = alloca i32, align 4
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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store i32 0, i32* %myres, align 4
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invoke void @may_crash() #4
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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%0 = call i8* @llvm.localaddress()
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invoke void @"\01?fin$1@0@main@@"(i1 zeroext false, i8* %0) #4
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to label %invoke.cont2 unwind label %lpad1
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invoke.cont2: ; preds = %invoke.cont
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%1 = call i8* @llvm.localaddress()
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call void @"\01?fin$0@0@main@@"(i1 zeroext false, i8* %1)
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ret i32 0
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lpad: ; preds = %entry
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%2 = landingpad { i8*, i32 }
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cleanup
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%3 = extractvalue { i8*, i32 } %2, 0
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store i8* %3, i8** %exn.slot
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%4 = extractvalue { i8*, i32 } %2, 1
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store i32 %4, i32* %ehselector.slot
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%5 = call i8* @llvm.localaddress()
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invoke void @"\01?fin$1@0@main@@"(i1 zeroext true, i8* %5) #4
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to label %invoke.cont3 unwind label %lpad1
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lpad1: ; preds = %lpad, %invoke.cont
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%6 = landingpad { i8*, i32 }
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cleanup
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%7 = extractvalue { i8*, i32 } %6, 0
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store i8* %7, i8** %exn.slot
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%8 = extractvalue { i8*, i32 } %6, 1
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store i32 %8, i32* %ehselector.slot
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br label %ehcleanup
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invoke.cont3: ; preds = %lpad
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br label %ehcleanup
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ehcleanup: ; preds = %invoke.cont3, %lpad1
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%9 = call i8* @llvm.localaddress()
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call void @"\01?fin$0@0@main@@"(i1 zeroext true, i8* %9)
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br label %eh.resume
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eh.resume: ; preds = %ehcleanup
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%exn = load i8*, i8** %exn.slot
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%sel = load i32, i32* %ehselector.slot
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0
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%lpad.val4 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1
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resume { i8*, i32 } %lpad.val4
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}
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; CHECK-NOT: define internal void @
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; CHECK-LABEL: define i32 @main()
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; CHECK: invoke void @may_crash()
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;
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: call i8* (...) @llvm.eh.actions(i32 0, void (i1, i8*)* @"\01?fin$1@0@main@@", i32 0, void (i1, i8*)* @"\01?fin$0@0@main@@")
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; CHECK-NEXT: indirectbr
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;
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: call i8* (...) @llvm.eh.actions(i32 0, void (i1, i8*)* @"\01?fin$0@0@main@@")
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; CHECK-NEXT: indirectbr
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; There should not be any *new* cleanup helpers, just the existing ones.
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; CHECK-NOT: define internal void @
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; CHECK: define internal void @"\01?fin$0@0@main@@"(i1 zeroext %abnormal_termination, i8* %frame_pointer)
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; CHECK-NOT: define internal void @
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; CHECK: define internal void @"\01?fin$1@0@main@@"(i1 zeroext %abnormal_termination, i8* %frame_pointer)
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; CHECK-NOT: define internal void @
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define internal void @"\01?fin$0@0@main@@"(i1 zeroext %abnormal_termination, i8* %frame_pointer) #2 {
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entry:
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%frame_pointer.addr = alloca i8*, align 8
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%abnormal_termination.addr = alloca i8, align 1
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store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
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%frombool = zext i1 %abnormal_termination to i8
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store i8 %frombool, i8* %abnormal_termination.addr, align 1
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%0 = zext i1 %abnormal_termination to i32
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%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @str_outer_finally, i32 0, i32 0), i32 %0)
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ret void
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}
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declare i32 @printf(i8*, ...) #2
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define internal void @"\01?fin$1@0@main@@"(i1 zeroext %abnormal_termination, i8* %frame_pointer) #2 {
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entry:
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%frame_pointer.addr = alloca i8*, align 8
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%abnormal_termination.addr = alloca i8, align 1
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store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
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%frombool = zext i1 %abnormal_termination to i8
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store i8 %frombool, i8* %abnormal_termination.addr, align 1
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%0 = zext i1 %abnormal_termination to i32
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%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @str_inner_finally, i32 0, i32 0), i32 %0)
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call void @may_crash()
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ret void
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}
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declare i32 @__C_specific_handler(...)
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; Function Attrs: nounwind readnone
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declare i8* @llvm.localaddress() #3
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { nounwind readnone }
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attributes #4 = { noinline }
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