File: memcmp-2.ll

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (17 lines) | stat: -rw-r--r-- 594 bytes parent folder | download | duplicates (23)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
; Test that the memcmp library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"

declare i32* @memcmp(i8*, i8*, i32)

; Check that memcmp functions with the wrong prototype aren't simplified.

define i32* @test_no_simplify1(i8* %mem, i32 %size) {
; CHECK-LABEL: @test_no_simplify1(
  %ret = call i32* @memcmp(i8* %mem, i8* %mem, i32 %size)
; CHECK-NEXT: call i32* @memcmp
  ret i32* %ret
; CHECK-NEXT: ret i32* %ret
}