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53 lines
1.5 KiB
53 lines
1.5 KiB
4 months ago
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; RUN: llc -march=hexagon -enable-pipeliner < %s
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; REQUIRES: asserts
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; This test checks that we don't assert when the Phi value from the
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; loop is actually defined prior to the loop, e.g., from CSE.
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define fastcc void @f0() {
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b0:
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br i1 undef, label %b10, label %b1
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b1: ; preds = %b0
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br i1 undef, label %b3, label %b2
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b2: ; preds = %b1
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br label %b8
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b3: ; preds = %b1
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br i1 undef, label %b4, label %b6
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b4: ; preds = %b3
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%v0 = load i16, i16* undef, align 2
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br label %b7
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b5: ; preds = %b7
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br label %b6
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b6: ; preds = %b5, %b3
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%v1 = phi i16 [ %v9, %b5 ], [ 0, %b3 ]
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br i1 undef, label %b10, label %b9
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b7: ; preds = %b7, %b4
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%v2 = phi i16 [ 0, %b7 ], [ %v0, %b4 ]
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%v3 = phi i16 [ %v9, %b7 ], [ 0, %b4 ]
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%v4 = phi i32 [ %v10, %b7 ], [ undef, %b4 ]
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%v5 = or i16 0, %v3
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%v6 = or i16 0, %v5
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%v7 = or i16 0, %v6
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%v8 = lshr i16 %v2, 8
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%v9 = or i16 %v8, %v7
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%v10 = add nsw i32 %v4, -32
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%v11 = icmp sgt i32 %v10, 31
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br i1 %v11, label %b7, label %b5
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b8: ; preds = %b8, %b2
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br label %b8
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b9: ; preds = %b6
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br label %b10
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b10: ; preds = %b9, %b6, %b0
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ret void
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}
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