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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt < %s -S -passes=msan -msan-precise-disjoint-or=false 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-IMPRECISE3; RUN: opt < %s -S -passes=msan -msan-precise-disjoint-or=true 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-PRECISE4;5; Test bitwise OR instructions, including "disjoint OR".6 7target 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"8target triple = "x86_64-unknown-linux-gnu"9 10define i8 @test_or(i8 %a, i8 %b) sanitize_memory {11; CHECK-LABEL: define i8 @test_or(12; CHECK-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0:[0-9]+]] {13; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 814; CHECK-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 815; CHECK-NEXT: call void @llvm.donothing()16; CHECK-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -117; CHECK-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -118; CHECK-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]19; CHECK-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]20; CHECK-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]21; CHECK-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]22; CHECK-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]23; CHECK-NEXT: [[C:%.*]] = or i8 [[A]], [[B]]24; CHECK-NEXT: store i8 [[TMP9]], ptr @__msan_retval_tls, align 825; CHECK-NEXT: ret i8 [[C]]26;27 %c = or i8 %a, %b28 ret i8 %c29}30 31define i8 @test_disjoint_or(i8 %a, i8 %b) sanitize_memory {32; CHECK-IMPRECISE-LABEL: define i8 @test_disjoint_or(33; CHECK-IMPRECISE-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0]] {34; CHECK-IMPRECISE-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 835; CHECK-IMPRECISE-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 836; CHECK-IMPRECISE-NEXT: call void @llvm.donothing()37; CHECK-IMPRECISE-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -138; CHECK-IMPRECISE-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -139; CHECK-IMPRECISE-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]40; CHECK-IMPRECISE-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]41; CHECK-IMPRECISE-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]42; CHECK-IMPRECISE-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]43; CHECK-IMPRECISE-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]44; CHECK-IMPRECISE-NEXT: [[C:%.*]] = or disjoint i8 [[A]], [[B]]45; CHECK-IMPRECISE-NEXT: store i8 [[TMP9]], ptr @__msan_retval_tls, align 846; CHECK-IMPRECISE-NEXT: ret i8 [[C]]47;48; CHECK-PRECISE-LABEL: define i8 @test_disjoint_or(49; CHECK-PRECISE-SAME: i8 [[A:%.*]], i8 [[B:%.*]]) #[[ATTR0]] {50; CHECK-PRECISE-NEXT: [[TMP1:%.*]] = load i8, ptr @__msan_param_tls, align 851; CHECK-PRECISE-NEXT: [[TMP2:%.*]] = load i8, ptr getelementptr (i8, ptr @__msan_param_tls, i64 8), align 852; CHECK-PRECISE-NEXT: call void @llvm.donothing()53; CHECK-PRECISE-NEXT: [[TMP3:%.*]] = xor i8 [[A]], -154; CHECK-PRECISE-NEXT: [[TMP4:%.*]] = xor i8 [[B]], -155; CHECK-PRECISE-NEXT: [[TMP5:%.*]] = and i8 [[TMP1]], [[TMP2]]56; CHECK-PRECISE-NEXT: [[TMP6:%.*]] = and i8 [[TMP3]], [[TMP2]]57; CHECK-PRECISE-NEXT: [[TMP7:%.*]] = and i8 [[TMP1]], [[TMP4]]58; CHECK-PRECISE-NEXT: [[TMP8:%.*]] = or i8 [[TMP5]], [[TMP6]]59; CHECK-PRECISE-NEXT: [[TMP9:%.*]] = or i8 [[TMP8]], [[TMP7]]60; CHECK-PRECISE-NEXT: [[TMP10:%.*]] = and i8 [[A]], [[B]]61; CHECK-PRECISE-NEXT: [[TMP11:%.*]] = icmp ne i8 [[TMP10]], 062; CHECK-PRECISE-NEXT: [[TMP12:%.*]] = sext i1 [[TMP11]] to i863; CHECK-PRECISE-NEXT: [[_MS_DISJOINT:%.*]] = or i8 [[TMP9]], [[TMP12]]64; CHECK-PRECISE-NEXT: [[C:%.*]] = or disjoint i8 [[A]], [[B]]65; CHECK-PRECISE-NEXT: store i8 [[_MS_DISJOINT]], ptr @__msan_retval_tls, align 866; CHECK-PRECISE-NEXT: ret i8 [[C]]67;68 %c = or disjoint i8 %a, %b69 ret i8 %c70}71