82 lines
2.7 KiB
LLVM
82 lines
2.7 KiB
LLVM
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; RUN: opt < %s -tsan -S | FileCheck --check-prefixes=CHECK,CHECK-OPT %s
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; RUN: opt < %s -tsan -tsan-instrument-read-before-write -S | FileCheck %s --check-prefixes=CHECK,CHECK-UNOPT
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; RUN: opt < %s -tsan -tsan-compound-read-before-write -S | FileCheck %s --check-prefixes=CHECK,CHECK-COMPOUND
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; RUN: opt < %s -tsan -tsan-distinguish-volatile -tsan-compound-read-before-write -S | FileCheck %s --check-prefixes=CHECK,CHECK-COMPOUND-VOLATILE
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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"
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define void @IncrementMe(i32* nocapture %ptr) nounwind uwtable sanitize_thread {
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entry:
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%0 = load i32, i32* %ptr, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* %ptr, align 4
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ret void
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}
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; CHECK-LABEL: define void @IncrementMe
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; CHECK-OPT-NOT: __tsan_read4
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; CHECK-COMPOUND-NOT: __tsan_read4
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; CHECK-UNOPT: __tsan_read4
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; CHECK-OPT: __tsan_write4
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; CHECK-UNOPT: __tsan_write4
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; CHECK-COMPOUND: __tsan_read_write4
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; CHECK: ret void
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define void @IncrementMeWithCallInBetween(i32* nocapture %ptr) nounwind uwtable sanitize_thread {
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entry:
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%0 = load i32, i32* %ptr, align 4
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%inc = add nsw i32 %0, 1
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call void @foo()
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store i32 %inc, i32* %ptr, align 4
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ret void
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}
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; CHECK-LABEL: define void @IncrementMeWithCallInBetween
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; CHECK: __tsan_read4
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; CHECK: __tsan_write4
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; CHECK: ret void
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declare void @foo()
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define void @VolatileLoad(i32* nocapture %ptr) nounwind uwtable sanitize_thread {
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entry:
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%0 = load volatile i32, i32* %ptr, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* %ptr, align 4
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ret void
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}
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; CHECK-LABEL: define void @VolatileLoad
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; CHECK-COMPOUND-NOT: __tsan_read4
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; CHECK-COMPOUND-VOLATILE: __tsan_volatile_read4
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; CHECK-COMPOUND: __tsan_read_write4
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; CHECK-COMPOUND-VOLATILE: __tsan_write4
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; CHECK: ret void
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define void @VolatileStore(i32* nocapture %ptr) nounwind uwtable sanitize_thread {
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entry:
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%0 = load i32, i32* %ptr, align 4
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%inc = add nsw i32 %0, 1
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store volatile i32 %inc, i32* %ptr, align 4
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ret void
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}
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; CHECK-LABEL: define void @VolatileStore
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; CHECK-COMPOUND-NOT: __tsan_read4
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; CHECK-COMPOUND-VOLATILE: __tsan_read4
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; CHECK-COMPOUND: __tsan_read_write4
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; CHECK-COMPOUND-VOLATILE: __tsan_volatile_write4
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; CHECK: ret void
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define void @VolatileBoth(i32* nocapture %ptr) nounwind uwtable sanitize_thread {
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entry:
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%0 = load volatile i32, i32* %ptr, align 4
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%inc = add nsw i32 %0, 1
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store volatile i32 %inc, i32* %ptr, align 4
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ret void
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}
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; CHECK-LABEL: define void @VolatileBoth
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; CHECK-COMPOUND-NOT: __tsan_read4
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; CHECK-COMPOUND-VOLATILE: __tsan_volatile_read4
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; CHECK-COMPOUND: __tsan_read_write4
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; CHECK-COMPOUND-VOLATILE: __tsan_volatile_write4
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; CHECK: ret void
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