| ; 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} |
