derek.holloway
7502bf64a4
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56 lines
1.9 KiB
LLVM
56 lines
1.9 KiB
LLVM
; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s --implicit-check-not="call void @__msan_warning"
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; RUN: opt < %s -msan-check-access-address=1 -S -passes=msan 2>&1 | FileCheck %s --check-prefix=ADDR --implicit-check-not="call void @__msan_warning"
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; REQUIRES: x86-registered-target
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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 @llvm.x86.sse.stmxcsr(ptr)
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declare void @llvm.x86.sse.ldmxcsr(ptr)
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define void @getcsr(ptr %p) sanitize_memory {
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entry:
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call void @llvm.x86.sse.stmxcsr(ptr %p)
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ret void
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}
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; CHECK-LABEL: @getcsr(
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; CHECK: store i32 0, ptr
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; CHECK: call void @llvm.x86.sse.stmxcsr(
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; CHECK: ret void
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; ADDR-LABEL: @getcsr(
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; ADDR: %[[A:.*]] = load i64, ptr @__msan_param_tls, align 8
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; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0
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; ADDR: br i1 %[[B]], label {{.*}}, label
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; ADDR: call void @__msan_warning_noreturn()
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; ADDR: call void @llvm.x86.sse.stmxcsr(
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; ADDR: ret void
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; Function Attrs: nounwind uwtable
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define void @setcsr(ptr %p) sanitize_memory {
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entry:
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call void @llvm.x86.sse.ldmxcsr(ptr %p)
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ret void
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}
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; CHECK-LABEL: @setcsr(
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; CHECK: %[[A:.*]] = load i32, ptr %{{.*}}, align 1
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; CHECK: %[[B:.*]] = icmp ne i32 %[[A]], 0
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; CHECK: br i1 %[[B]], label {{.*}}, label
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; CHECK: call void @__msan_warning_noreturn()
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; CHECK: call void @llvm.x86.sse.ldmxcsr(
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; CHECK: ret void
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; ADDR-LABEL: @setcsr(
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; ADDR: %[[A:.*]] = load i64, ptr @__msan_param_tls, align 8
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; ADDR: %[[C:.*]] = load i32, ptr
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; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0
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; ADDR: %[[D:.*]] = icmp ne i32 %[[C]], 0
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; ADDR: %[[E:.*]] = or i1 %[[B]], %[[D]]
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; ADDR: br i1 %[[E]], label {{.*}}, label
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; ADDR: call void @__msan_warning_noreturn()
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; ADDR: call void @llvm.x86.sse.ldmxcsr(
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; ADDR: ret void
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