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