mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-03 15:29:28 +00:00
ceca194c43
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48137 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
424 B
LLVM
20 lines
424 B
LLVM
; CFG Simplification is making a loop dead, then changing the add into:
|
|
;
|
|
; %V1 = add int %V1, 1
|
|
;
|
|
; Which is not valid SSA
|
|
;
|
|
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis
|
|
|
|
define void @test() {
|
|
; <label>:0
|
|
br i1 true, label %end, label %Loop
|
|
Loop: ; preds = %Loop, %0
|
|
%V = phi i32 [ 0, %0 ], [ %V1, %Loop ] ; <i32> [#uses=1]
|
|
%V1 = add i32 %V, 1 ; <i32> [#uses=1]
|
|
br label %Loop
|
|
end: ; preds = %0
|
|
ret void
|
|
}
|
|
|