File: memcmp-2.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (17 lines) | stat: -rw-r--r-- 595 bytes parent folder | download | duplicates (12) 
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 -passes=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 ptr @memcmp(ptr, ptr, i32)

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

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