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