mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-30 05:29:47 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48527 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
635 B
LLVM
24 lines
635 B
LLVM
; This testcase checks to make sure we can sink values which are only live on
|
|
; some exits out of the loop, and that we can do so without breaking dominator
|
|
; info.
|
|
;
|
|
; RUN: llvm-as < %s | opt -licm | llvm-dis | \
|
|
; RUN: %prcontext add 1 | grep exit2:
|
|
|
|
define i32 @test(i1 %C1, i1 %C2, i32* %P, i32* %Q) {
|
|
Entry:
|
|
br label %Loop
|
|
Loop: ; preds = %Cont, %Entry
|
|
br i1 %C1, label %Cont, label %exit1
|
|
Cont: ; preds = %Loop
|
|
%X = load i32* %P ; <i32> [#uses=2]
|
|
store i32 %X, i32* %Q
|
|
%V = add i32 %X, 1 ; <i32> [#uses=1]
|
|
br i1 %C2, label %Loop, label %exit2
|
|
exit1: ; preds = %Loop
|
|
ret i32 0
|
|
exit2: ; preds = %Cont
|
|
ret i32 %V
|
|
}
|
|
|