1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; Regression test for https://bugs.llvm.org/show_bug.cgi?id=32842 3; 4; RUN: opt < %s -S -passes=msan 2>&1 | FileCheck %s 5 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8 9; Make sure the shadow of the (x < y) comparison isn't truncated to i1. 10 11define zeroext i1 @_Z1fii(i32 %x, i32 %y) sanitize_memory { 12; CHECK-LABEL: define zeroext i1 @_Z1fii( 13; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) #[[ATTR0:[0-9]+]] { 14; CHECK-NEXT: [[ENTRY:.*:]] 15; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @__msan_param_tls, align 8 16; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr inttoptr (i64 add (i64 ptrtoint (ptr @__msan_param_tls to i64), i64 8) to ptr), align 8 17; CHECK-NEXT: call void @llvm.donothing() 18; CHECK-NEXT: [[TMP10:%.*]] = xor i32 [[X]], -2147483648 19; CHECK-NEXT: [[TMP3:%.*]] = xor i32 [[TMP0]], -1 20; CHECK-NEXT: [[TMP4:%.*]] = and i32 [[TMP10]], [[TMP3]] 21; CHECK-NEXT: [[TMP5:%.*]] = or i32 [[TMP10]], [[TMP0]] 22; CHECK-NEXT: [[TMP6:%.*]] = xor i32 [[Y]], -2147483648 23; CHECK-NEXT: [[TMP7:%.*]] = xor i32 [[TMP1]], -1 24; CHECK-NEXT: [[TMP8:%.*]] = and i32 [[TMP6]], [[TMP7]] 25; CHECK-NEXT: [[TMP9:%.*]] = or i32 [[TMP6]], [[TMP1]] 26; CHECK-NEXT: [[TMP14:%.*]] = icmp ult i32 [[TMP4]], [[TMP9]] 27; CHECK-NEXT: [[TMP27:%.*]] = icmp ult i32 [[TMP5]], [[TMP8]] 28; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP14]], [[TMP27]] 29; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[X]], [[Y]] 30; CHECK-NEXT: store i1 [[TMP2]], ptr @__msan_retval_tls, align 8 31; CHECK-NEXT: ret i1 [[CMP]] 32; 33entry: 34 %cmp = icmp slt i32 %x, %y 35 ret i1 %cmp 36} 37