opt-addr-mode.ll
4.38 KB
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; RUN: llc -march=hexagon -hexagon-small-data-threshold=0 -disable-hexagon-amodeopt < %s | FileCheck %s --check-prefix=CHECK-NO-AMODE
; RUN: llc -march=hexagon -hexagon-small-data-threshold=0 -disable-hexagon-amodeopt=0 -hexagon-amode-growth-limit=4 < %s | FileCheck %s --check-prefix=CHECK-AMODE
; CHECK-NO-AMODE: [[REG0:(r[0-9]+)]] = ##global_2
; CHECK-NO-AMODE: memw([[REG0]]+{{.*}}<<#2) =
; CHECK-AMODE: [[REG1:(r[0-9]+)]] = memw(##global_1)
; CHECK-AMODE: memw([[REG1]]<<#2+##global_2) =
@global_1 = external global i32, align 4
@global_2 = external global [128 x i32], align 8
declare i32 @foo(i32, i32) #0
define i32 @fred(i32 %a0, i32 %a1, i32* %p) #0 {
entry:
%call24 = tail call i32 @foo(i32 %a0, i32 1) #0
%tobool26 = icmp eq i32 %call24, 0
br i1 %tobool26, label %while.end, label %while.body.lr.ph
while.body.lr.ph: ; preds = %entry
%cmp3 = icmp sgt i32 %a1, 19
%sub = sub nsw i32 19, %a0
%xor = xor i32 %a0, 1
br i1 %cmp3, label %while.body.us.preheader, label %while.body.preheader
while.body.preheader: ; preds = %while.body.lr.ph
br label %while.body
while.body.us.preheader: ; preds = %while.body.lr.ph
br label %while.body.us
while.body.us: ; preds = %while.body.us.preheader, %while.cond.backedge.us
%call27.us = phi i32 [ %call.us, %while.cond.backedge.us ], [ %call24, %while.body.us.preheader ]
%x0 = load i32, i32* %p, align 4, !tbaa !4
%cmp.us = icmp sgt i32 %x0, 0
br i1 %cmp.us, label %if.then.us, label %if.end.us
if.then.us: ; preds = %while.body.us
%sext.us = shl i32 %call27.us, 24
%conv2.us = ashr i32 %sext.us, 24
%x10 = tail call i32 @foo(i32 %conv2.us, i32 %sext.us) #0
br label %if.end.us
if.end.us: ; preds = %if.then.us, %while.body.us
%x1 = load i32, i32* %p, align 4, !tbaa !4
%call8.us = tail call i32 @foo(i32 %sub, i32 %a1) #0
%tobool11.us = icmp eq i32 %call8.us, 0
br i1 %tobool11.us, label %while.cond.backedge.us, label %if.then12.us
if.then12.us: ; preds = %if.end.us
%x3 = load i32, i32* %p, align 4, !tbaa !4
%sub13.us = sub i32 %x3, %x1
%x4 = load i32, i32* @global_1, align 4, !tbaa !4
%arrayidx.us = getelementptr inbounds [128 x i32], [128 x i32]* @global_2, i32 0, i32 %x4
store i32 %sub13.us, i32* %arrayidx.us, align 4, !tbaa !4
br label %while.cond.backedge.us
while.cond.backedge.us: ; preds = %if.then12.us, %if.end.us
%call.us = tail call i32 @foo(i32 %a0, i32 2) #0
%tobool.us = icmp eq i32 %call.us, 0
br i1 %tobool.us, label %while.end.loopexit, label %while.body.us
while.body: ; preds = %while.body.preheader, %while.cond.backedge
%call27 = phi i32 [ %call, %while.cond.backedge ], [ %call24, %while.body.preheader ]
%x5 = load i32, i32* %p, align 4, !tbaa !4
%cmp = icmp sgt i32 %x5, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %while.body
%sext = shl i32 %call27, 24
%conv2 = ashr i32 %sext, 24
%x11 = tail call i32 @foo(i32 %conv2, i32 %sext) #0
br label %if.end
if.end: ; preds = %if.then, %while.body
%tobool11 = icmp eq i32 %call27, 0
br i1 %tobool11, label %while.cond.backedge, label %if.then12
if.then12: ; preds = %if.end
%x7 = load i32, i32* @global_1, align 4, !tbaa !4
%arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* @global_2, i32 0, i32 %x7
store i32 0, i32* %arrayidx, align 4, !tbaa !4
br label %while.cond.backedge
while.cond.backedge: ; preds = %if.then12, %if.end
%call = tail call i32 @foo(i32 %a0, i32 3) #0
%tobool = icmp eq i32 %call, 0
br i1 %tobool, label %while.end.loopexit33, label %while.body
while.end.loopexit: ; preds = %while.cond.backedge.us
br label %while.end
while.end.loopexit33: ; preds = %while.cond.backedge
br label %while.end
while.end: ; preds = %while.end.loopexit33, %while.end.loopexit, %entry
ret i32 0
}
attributes #0 = { nounwind }
!1 = !{!2, !2, i64 0}
!2 = !{!"omnipotent char", !3, i64 0}
!3 = !{!"Simple C/C++ TBAA"}
!4 = !{!5, !5, i64 0}
!5 = !{!"int", !2, i64 0}