derek.holloway
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71 lines
3.8 KiB
LLVM
71 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -S -passes=msan -msan-precise-disjoint-or=false 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-IMPRECISE
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; RUN: opt < %s -S -passes=msan -msan-precise-disjoint-or=true 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-PRECISE
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;
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; Test bitwise OR instructions, including "disjoint OR".
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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 i8 @test_or(i8 %a, i8 %b) sanitize_memory {
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; CHECK-LABEL: define i8 @test_or(
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; CHECK-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 8
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; CHECK-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 8
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; CHECK-NEXT: call void @llvm.donothing()
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; CHECK-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -1
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; CHECK-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -1
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; CHECK-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]
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; CHECK-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]
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; CHECK-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]
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; CHECK-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]
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; CHECK-NEXT: [[C:%.*]] = or i8 [[A]], [[B]]
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; CHECK-NEXT: store i8 [[TMP9]], ptr @__msan_retval_tls, align 8
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; CHECK-NEXT: ret i8 [[C]]
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;
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%c = or i8 %a, %b
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ret i8 %c
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}
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define i8 @test_disjoint_or(i8 %a, i8 %b) sanitize_memory {
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; CHECK-IMPRECISE-LABEL: define i8 @test_disjoint_or(
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; CHECK-IMPRECISE-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0]] {
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; CHECK-IMPRECISE-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 8
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; CHECK-IMPRECISE-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 8
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; CHECK-IMPRECISE-NEXT: call void @llvm.donothing()
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; CHECK-IMPRECISE-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -1
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; CHECK-IMPRECISE-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -1
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; CHECK-IMPRECISE-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]
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; CHECK-IMPRECISE-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]
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; CHECK-IMPRECISE-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]
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; CHECK-IMPRECISE-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]
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; CHECK-IMPRECISE-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]
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; CHECK-IMPRECISE-NEXT: [[C:%.*]] = or disjoint i8 [[A]], [[B]]
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; CHECK-IMPRECISE-NEXT: store i8 [[TMP9]], ptr @__msan_retval_tls, align 8
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; CHECK-IMPRECISE-NEXT: ret i8 [[C]]
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;
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; CHECK-PRECISE-LABEL: define i8 @test_disjoint_or(
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; CHECK-PRECISE-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0]] {
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; CHECK-PRECISE-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 8
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; CHECK-PRECISE-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 8
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; CHECK-PRECISE-NEXT: call void @llvm.donothing()
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; CHECK-PRECISE-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -1
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; CHECK-PRECISE-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -1
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; CHECK-PRECISE-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]
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; CHECK-PRECISE-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]
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; CHECK-PRECISE-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]
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; CHECK-PRECISE-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]
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; CHECK-PRECISE-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]
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; CHECK-PRECISE-NEXT: [[TMP10:%.*]] = and i8 [[A]], [[B]]
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; CHECK-PRECISE-NEXT: [[TMP11:%.*]] = icmp ne i8 [[TMP10]], 0
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; CHECK-PRECISE-NEXT: [[TMP12:%.*]] = sext i1 [[TMP11]] to i8
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; CHECK-PRECISE-NEXT: [[_MS_DISJOINT:%.*]] = or i8 [[TMP9]], [[TMP12]]
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; CHECK-PRECISE-NEXT: [[C:%.*]] = or disjoint i8 [[A]], [[B]]
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; CHECK-PRECISE-NEXT: store i8 [[_MS_DISJOINT]], ptr @__msan_retval_tls, align 8
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; CHECK-PRECISE-NEXT: ret i8 [[C]]
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;
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%c = or disjoint i8 %a, %b
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ret i8 %c
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}
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