llvm.org GIT mirror llvm / release_16 test / Analysis / BasicAA / 2004-01-29-InvariantMemory.llx
release_16

Tree @release_16 (Download .tar.gz)

2004-01-29-InvariantMemory.llx @release_16

cfa435f
 
 
 
 
 
 
 
 
 
 
 
; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | not grep load

%X = constant [2 x int] [int 4, int 5]

int %test(int* %Y, long %idx) {
        %P = getelementptr [2 x int]* %X, long 0, long %idx
	%A = load int* %P      ; Load from invariant memory
	store int 4, int* %Y   ; Store could not be to %X
	%B = load int* %P
	%C = sub int %A, %B
	ret int %C
}