File: 2003-09-19-LocalArgument.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 (15 lines) | stat: -rw-r--r-- 360 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
; In this test, a local alloca cannot alias an incoming argument.

; RUN: opt < %s -aa-pipeline=basic-aa -passes=gvn,instcombine -S | FileCheck %s

; CHECK:      define i32 @test
; CHECK-NEXT: ret i32 0

define i32 @test(ptr %P) {
	%X = alloca i32
	%V1 = load i32, ptr %P
	store i32 0, ptr %X
	%V2 = load i32, ptr %P
	%Diff = sub i32 %V1, %V2
	ret i32 %Diff
}