File: memcpy-2.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (18 lines) | stat: -rw-r--r-- 688 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
; Test that the memcpy 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 i8 @memcpy(ptr, ptr, i32)

; Check that memcpy functions with the wrong prototype (doesn't return a pointer) aren't simplified.

define i8 @test_no_simplify1(ptr %mem1, ptr %mem2, i32 %size) {
; CHECK-LABEL: @test_no_simplify1(
; CHECK-NEXT:    [[RET:%.*]] = call i8 @memcpy(ptr %mem1, ptr %mem2, i32 %size)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %ret = call i8 @memcpy(ptr %mem1, ptr %mem2, i32 %size)
  ret i8 %ret
}