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4db942e6a5
The feeder instruction will be moved to right before the compare, so the updating code should not be looking for kills past the compare. llvm-svn: 306059
54 lines
1.7 KiB
LLVM
54 lines
1.7 KiB
LLVM
; RUN: llc -march=hexagon -O3 -verify-machineinstrs < %s | FileCheck %s
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;
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; Check that this testcase compiles successfully and that a new-value jump
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; has been created.
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; CHECK: if (cmp.gtu(r{{[0-9]+}}.new,r{{[0-9]+}})) jump
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target triple = "hexagon"
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@g0 = external hidden unnamed_addr global [182 x i16], align 8
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define void @fred(i16 signext %a0) local_unnamed_addr #0 {
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b1:
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%v2 = getelementptr inbounds [182 x i16], [182 x i16]* @g0, i32 0, i32 0
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%v3 = sext i16 %a0 to i32
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%v4 = call i32 @llvm.hexagon.A2.asrh(i32 undef)
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%v5 = trunc i32 %v4 to i16
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br i1 undef, label %b6, label %b14
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b6: ; preds = %b1
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%v7 = sext i16 %v5 to i32
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br label %b8
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b8: ; preds = %b8, %b6
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%v9 = phi i32 [ 128, %b6 ], [ %v13, %b8 ]
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%v10 = sub nsw i32 %v9, %v7
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%v11 = getelementptr inbounds [182 x i16], [182 x i16]* @g0, i32 0, i32 %v10
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%v12 = load i16, i16* %v11, align 2
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%v13 = add nuw nsw i32 %v9, 1
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br label %b8
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b14: ; preds = %b1
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br i1 undef, label %b16, label %b15
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b15: ; preds = %b14
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unreachable
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b16: ; preds = %b14
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%v17 = getelementptr [182 x i16], [182 x i16]* @g0, i32 0, i32 %v3
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%v18 = icmp ugt i16* %v17, %v2
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%v19 = or i1 %v18, undef
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br i1 %v19, label %b20, label %b21
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b20: ; preds = %b16
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unreachable
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b21: ; preds = %b16
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ret void
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}
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declare i32 @llvm.hexagon.A2.asrh(i32) #1
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attributes #0 = { nounwind "target-cpu"="hexagonv62" }
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attributes #1 = { nounwind readnone }
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