24 lines
1.0 KiB
LLVM
24 lines
1.0 KiB
LLVM
; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s
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; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=2 -S -passes=msan 2>&1 | FileCheck %s -check-prefixes=CHECK,CHECK-ORIGIN
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; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s
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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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target triple = "x86_64-unknown-linux-gnu"
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define i32 @nofreeze(i32* %ptr) sanitize_memory {
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; CHECK-LABEL: @nofreeze
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%val = load i32, i32* %ptr
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; CHECK: [[SHADOW_PTR:%.*]] = inttoptr
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; CHECK: [[SHADOW:%.*]] = load i32, i32* [[SHADOW_PTR]]
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; CHECK: store i32 [[SHADOW]], {{.*}} @__msan_retval_tls
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ret i32 %val
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}
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define i32 @freeze_inst(i32* %ptr) sanitize_memory {
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; CHECK-LABEL: @freeze_inst
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%val = load i32, i32* %ptr
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%freeze_val = freeze i32 %val
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; CHECK-NOT: __msan_warning
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; CHECK: store i32 0, {{.*}} @__msan_retval_tls
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ret i32 %freeze_val
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}
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