mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
e6d5d39c07
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48538 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
1.2 KiB
LLVM
30 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | \
|
|
; RUN: grep {add i32 %iv.*inc, 1}
|
|
;
|
|
; Make sure that the use of the IV outside of the loop (the store) uses the
|
|
; post incremented value of the IV, not the preincremented value. This
|
|
; prevents the loop from having to keep the post and pre-incremented value
|
|
; around for the duration of the loop, adding a copy and an extra register
|
|
; to the loop.
|
|
|
|
declare i1 @pred(i32)
|
|
|
|
define void @test([700 x i32]* %nbeaux_.0__558, i32* %i_.16574) {
|
|
then.0:
|
|
br label %no_exit.2
|
|
no_exit.2: ; preds = %no_exit.2, %then.0
|
|
%indvar630.ui = phi i32 [ 0, %then.0 ], [ %indvar.next631, %no_exit.2 ] ; <i32> [#uses=3]
|
|
%indvar630 = bitcast i32 %indvar630.ui to i32 ; <i32> [#uses=2]
|
|
%gep.upgrd.1 = zext i32 %indvar630.ui to i64 ; <i64> [#uses=1]
|
|
%tmp.38 = getelementptr [700 x i32]* %nbeaux_.0__558, i32 0, i64 %gep.upgrd.1 ; <i32*> [#uses=1]
|
|
store i32 0, i32* %tmp.38
|
|
%inc.2 = add i32 %indvar630, 2 ; <i32> [#uses=1]
|
|
%tmp.34 = call i1 @pred( i32 %indvar630 ) ; <i1> [#uses=1]
|
|
%indvar.next631 = add i32 %indvar630.ui, 1 ; <i32> [#uses=1]
|
|
br i1 %tmp.34, label %no_exit.2, label %loopexit.2.loopexit
|
|
loopexit.2.loopexit: ; preds = %no_exit.2
|
|
store i32 %inc.2, i32* %i_.16574
|
|
ret void
|
|
}
|
|
|