mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
ec9a35a6f9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47793 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
546 B
LLVM
21 lines
546 B
LLVM
; This is a basic sanity check for constant propogation. The add instruction
|
|
; should be eliminated.
|
|
|
|
; RUN: llvm-as < %s | opt -constprop -die | llvm-dis | not grep add
|
|
|
|
define i32 @test(i1 %B) {
|
|
br i1 %B, label %BB1, label %BB2
|
|
|
|
BB1: ; preds = %0
|
|
%Val = add i32 0, 0 ; <i32> [#uses=1]
|
|
br label %BB3
|
|
|
|
BB2: ; preds = %0
|
|
br label %BB3
|
|
|
|
BB3: ; preds = %BB2, %BB1
|
|
%Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ] ; <i32> [#uses=1]
|
|
ret i32 %Ret
|
|
}
|
|
|