File: pr27262.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (33 lines) | stat: -rw-r--r-- 807 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
21
22
23
24
25
26
27
28
29
30
31
32
33
 
; RUN: opt -S -basic-aa -licm < %s | FileCheck %s

target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc18.0.0"

; Make sure the store to v is not sunk past the memset
; CHECK-LABEL: @main
; CHECK: for.body:
; CHECK-NEXT: store i8 1, i8* %p
; CHECK-NEXT: store i8 2, i8* %p1
; CHECK-NEXT: call void @llvm.memset
; CHECK: end:
; CHECK-NEXT: ret i32 0

define i32 @main(i1 %k, i8* %p) {
entry:
  %p1 = getelementptr i8, i8* %p, i32 1
  br label %for.body
 
for.body:
  store i8 1, i8* %p, align 1
  store i8 2, i8* %p1, align 1
  call void @llvm.memset.p0i8.i32(i8* %p, i8 255, i32 4, i1 false)
  br label %for.latch
  
for.latch:
  br i1 %k, label %for.body, label %end

end:
  ret i32 0
}

declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1)