| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- ; RUN: opt < %s -tsan -S | FileCheck %s
- target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
- declare void @escape(i32*)
- @sink = global i32* null, align 4
- define void @captured0() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- ; escapes due to call
- call void @escape(i32* %ptr)
- store i32 42, i32* %ptr, align 4
- ret void
- }
- ; CHECK-LABEL: define void @captured0
- ; CHECK: __tsan_write
- ; CHECK: ret void
- define void @captured1() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- ; escapes due to store into global
- store i32* %ptr, i32** @sink, align 8
- store i32 42, i32* %ptr, align 4
- ret void
- }
- ; CHECK-LABEL: define void @captured1
- ; CHECK: __tsan_write
- ; CHECK: __tsan_write
- ; CHECK: ret void
- define void @captured2() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- %tmp = alloca i32*, align 8
- ; transitive escape
- store i32* %ptr, i32** %tmp, align 8
- %0 = load i32*, i32** %tmp, align 8
- store i32* %0, i32** @sink, align 8
- store i32 42, i32* %ptr, align 4
- ret void
- }
- ; CHECK-LABEL: define void @captured2
- ; CHECK: __tsan_write
- ; CHECK: __tsan_write
- ; CHECK: ret void
- define void @notcaptured0() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- store i32 42, i32* %ptr, align 4
- ; escapes due to call
- call void @escape(i32* %ptr)
- ret void
- }
- ; CHECK-LABEL: define void @notcaptured0
- ; CHECK: __tsan_write
- ; CHECK: ret void
- define void @notcaptured1() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- store i32 42, i32* %ptr, align 4
- ; escapes due to store into global
- store i32* %ptr, i32** @sink, align 8
- ret void
- }
- ; CHECK-LABEL: define void @notcaptured1
- ; CHECK: __tsan_write
- ; CHECK: __tsan_write
- ; CHECK: ret void
- define void @notcaptured2() nounwind uwtable sanitize_thread {
- entry:
- %ptr = alloca i32, align 4
- %tmp = alloca i32*, align 8
- store i32 42, i32* %ptr, align 4
- ; transitive escape
- store i32* %ptr, i32** %tmp, align 8
- %0 = load i32*, i32** %tmp, align 8
- store i32* %0, i32** @sink, align 8
- ret void
- }
- ; CHECK-LABEL: define void @notcaptured2
- ; CHECK: __tsan_write
- ; CHECK: __tsan_write
- ; CHECK: ret void
|
