derek.holloway
7502bf64a4
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50 lines
1.6 KiB
LLVM
50 lines
1.6 KiB
LLVM
; Test for -msan-disable-checks, which should treat every function in the file
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; as if it didn't have the sanitize_memory attribute.
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; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan)' 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,INSTR %s
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; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan)' -msan-disable-checks=1 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,NOSANITIZE %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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declare void @bar()
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define i32 @SanitizeFn(i32 %x) uwtable sanitize_memory {
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entry:
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%tobool = icmp eq i32 %x, 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 @bar()
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret i32 %x
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}
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; CHECK-LABEL: @SanitizeFn
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; INSTR: @__msan_warning
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; NOSANITIZE-NOT: @__msan_warning
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; NOSANITIZE: store i32 0, {{.*}} @__msan_retval_tls
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; CHECK: ret i32
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define i32 @NoSanitizeFn(i32 %x) uwtable {
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entry:
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%tobool = icmp eq i32 %x, 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 @bar()
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret i32 %x
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}
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; CHECK-LABEL: @NoSanitizeFn
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; CHECK-NOT: @__msan_warning
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; CHECK: store i32 0, {{.*}} @__msan_retval_tls
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; CHECK: ret i32
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