31 lines
1.2 KiB
LLVM
31 lines
1.2 KiB
LLVM
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; To test that __tsan_func_exit always happen before musttaill call and no exception handling code.
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; RUN: opt < %s -tsan -S | FileCheck %s
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define internal i32 @preallocated_musttail(i32* preallocated(i32) %p) sanitize_thread {
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%rv = load i32, i32* %p
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ret i32 %rv
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}
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define i32 @call_preallocated_musttail(i32* preallocated(i32) %a) sanitize_thread {
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%r = musttail call i32 @preallocated_musttail(i32* preallocated(i32) %a)
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ret i32 %r
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}
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; CHECK-LABEL: define i32 @call_preallocated_musttail(i32* preallocated(i32) %a)
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; CHECK: call void @__tsan_func_exit()
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; CHECK-NEXT: %r = musttail call i32 @preallocated_musttail(i32* preallocated(i32) %a)
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; CHECK-NEXT: ret i32 %r
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define i32 @call_preallocated_musttail_cast(i32* preallocated(i32) %a) sanitize_thread {
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%r = musttail call i32 @preallocated_musttail(i32* preallocated(i32) %a)
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%t = bitcast i32 %r to i32
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ret i32 %t
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}
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; CHECK-LABEL: define i32 @call_preallocated_musttail_cast(i32* preallocated(i32) %a)
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; CHECK: call void @__tsan_func_exit()
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; CHECK-NEXT: %r = musttail call i32 @preallocated_musttail(i32* preallocated(i32) %a)
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; CHECK-NEXT: %t = bitcast i32 %r to i32
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; CHECK-NEXT: ret i32 %t
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