File: pr32842.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (20 lines) | stat: -rw-r--r-- 726 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; Regression test for https://bugs.llvm.org/show_bug.cgi?id=32842
;
; RUN: opt < %s -S -passes=msan 2>&1 | 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 [[X]], [[Y]]

; 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