1; Regression test for https://bugs.llvm.org/show_bug.cgi?id=32842 2; 3; RUN: opt < %s -msan -S | FileCheck %s 4;target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7define zeroext i1 @_Z1fii(i32 %x, i32 %y) sanitize_memory { 8entry: 9 %cmp = icmp slt i32 %x, %y 10 ret i1 %cmp 11} 12 13; CHECK: [[X:[^ ]+]] = load{{.*}}__msan_param_tls{{.*}} 14; CHECK: [[Y:[^ ]+]] = load{{.*}}__msan_param_tls{{.*}} 15; CHECK: [[OR:[^ ]+]] = or i32 [[Y]], [[X]] 16 17; Make sure the shadow of the (x < y) comparison isn't truncated to i1. 18; CHECK-NOT: trunc i32 [[OR]] to i1 19; CHECK: [[CMP:[^ ]+]] = icmp ne i32 [[OR]], 0 20; CHECK: store i1 [[CMP]],{{.*}}__msan_retval_tls 21