llvm-6502/test/Transforms/GVN/mixed.ll
Owen Anderson 1ad2cb7555 Add a GVN pass, using the value numbering code I developed for GVNPRE and the
load elimination code from RedundantLoadElimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40469 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 17:55:58 +00:00

13 lines
369 B
LLVM

; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep DEADLOAD
; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep DEADGEP
define i32 @main(i32** %p) {
block1:
%z1 = load i32** %p
%z2 = getelementptr i32* %z1, i32 0
%z3 = load i32* %z2
%DEADLOAD = load i32** %p
%DEADGEP = getelementptr i32* %DEADLOAD, i32 0
%DEADLOAD2 = load i32* %DEADGEP
ret i32 %DEADLOAD2
}