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54 lines
2.0 KiB
LLVM
54 lines
2.0 KiB
LLVM
; Test -msan-instrumentation-with-call-threshold
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; Test that in with-calls mode there are no calls to __msan_chain_origin - they
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; are done from __msan_maybe_store_origin_*.
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -S | FileCheck %s
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS %s
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -msan-track-origins=2 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS %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 void @LoadAndCmp(i32* nocapture %a) nounwind uwtable sanitize_memory {
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entry:
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%0 = load i32, i32* %a, align 4
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%tobool = icmp eq i32 %0, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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tail call void (...) @foo() nounwind
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret void
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}
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declare void @foo(...)
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; CHECK-LABEL: @LoadAndCmp
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; CHECK: = load
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; CHECK: = load
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; CHECK: = zext i1 {{.*}} to i8
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; CHECK: call void @__msan_maybe_warning_1(
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; CHECK-NOT: unreachable
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; CHECK: ret void
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define void @Store(i64* nocapture %p, i64 %x) nounwind uwtable sanitize_memory {
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entry:
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store i64 %x, i64* %p, align 4
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ret void
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}
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; CHECK-LABEL: @Store
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; CHECK: load {{.*}} @__msan_param_tls
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; CHECK-ORIGINS: load {{.*}} @__msan_param_origin_tls
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; CHECK: store
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; CHECK-ORIGINS-NOT: __msan_chain_origin
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; CHECK-ORIGINS: bitcast i64* {{.*}} to i8*
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; CHECK-ORIGINS-NOT: __msan_chain_origin
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; CHECK-ORIGINS: call void @__msan_maybe_store_origin_8(
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; CHECK-ORIGINS-NOT: __msan_chain_origin
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; CHECK: store i64
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; CHECK: ret void
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