File: load-constant-mem.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (19 lines) | stat: -rw-r--r-- 461 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
; RUN: opt < %s -passes=gvn,instcombine -S | FileCheck %s
; PR4189
@G = external constant [4 x i32]

define i32 @test(ptr %p, i32 %i) nounwind {
entry:
	%P = getelementptr [4 x i32], ptr @G, i32 0, i32 %i
	%A = load i32, ptr %P
	store i8 4, ptr %p
	%B = load i32, ptr %P
	%C = sub i32 %A, %B
	ret i32 %C
}

; CHECK: define i32 @test(ptr %p, i32 %i) #0 {
; CHECK-NEXT: entry:
; CHECK-NEXT:   store i8 4, ptr %p, align 1
; CHECK-NEXT:   ret i32 0
; CHECK-NEXT: }