mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 05:32:25 +00:00
36 lines
1.6 KiB
LLVM
36 lines
1.6 KiB
LLVM
|
; RUN: llc < %s -mtriple=i386-apple-darwin | FileCheck %s
|
||
|
|
; rdar://5571034
|
||
|
|
|
||
|
|
define void @foo(i32* nocapture %quadrant, i32* nocapture %ptr, i32 %bbSize, i32 %bbStart, i32 %shifts) nounwind ssp {
|
||
|
|
; CHECK: foo:
|
||
|
|
entry:
|
||
|
|
%j.03 = add i32 %bbSize, -1 ; <i32> [#uses=2]
|
||
|
|
%0 = icmp sgt i32 %j.03, -1 ; <i1> [#uses=1]
|
||
|
|
br i1 %0, label %bb.nph, label %return
|
||
|
|
|
||
|
|
bb.nph: ; preds = %entry
|
||
|
|
%tmp9 = add i32 %bbStart, %bbSize ; <i32> [#uses=1]
|
||
|
|
%tmp10 = add i32 %tmp9, -1 ; <i32> [#uses=1]
|
||
|
|
br label %bb
|
||
|
|
|
||
|
|
bb: ; preds = %bb, %bb.nph
|
||
|
|
; CHECK: %bb
|
||
|
|
; CHECK-NOT: movb {{.*}}l, %cl
|
||
|
|
; CHECK: sarl %cl
|
||
|
|
%indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb ] ; <i32> [#uses=3]
|
||
|
|
%j.06 = sub i32 %j.03, %indvar ; <i32> [#uses=1]
|
||
|
|
%tmp11 = sub i32 %tmp10, %indvar ; <i32> [#uses=1]
|
||
|
|
%scevgep = getelementptr i32* %ptr, i32 %tmp11 ; <i32*> [#uses=1]
|
||
|
|
%1 = load i32* %scevgep, align 4 ; <i32> [#uses=1]
|
||
|
|
%2 = ashr i32 %j.06, %shifts ; <i32> [#uses=1]
|
||
|
|
%3 = and i32 %2, 65535 ; <i32> [#uses=1]
|
||
|
|
%4 = getelementptr inbounds i32* %quadrant, i32 %1 ; <i32*> [#uses=1]
|
||
|
|
store i32 %3, i32* %4, align 4
|
||
|
|
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
|
||
|
|
%exitcond = icmp eq i32 %indvar.next, %bbSize ; <i1> [#uses=1]
|
||
|
|
br i1 %exitcond, label %return, label %bb
|
||
|
|
|
||
|
|
return: ; preds = %bb, %entry
|
||
|
|
ret void
|
||
|
|
}
|