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39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: opt %s -gvnpre -S | not grep {%z3 =}
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; RUN: opt %s -gvnpre -S | not grep {%z9 =}
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define i32 @main() {
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block1:
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%z1 = bitcast i32 0 to i32 ; <i32> [#uses=5]
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br label %block2
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block2: ; preds = %block6, %block1
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%z2 = phi i32 [ %z1, %block1 ], [ %z3, %block6 ] ; <i32> [#uses=3]
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%z3 = add i32 %z2, 1 ; <i32> [#uses=5]
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br i1 false, label %block3, label %block7
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block3: ; preds = %block2
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br i1 true, label %block4, label %block5
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block4: ; preds = %block3
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%z4 = add i32 %z2, %z3 ; <i32> [#uses=1]
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%z5 = bitcast i32 %z4 to i32 ; <i32> [#uses=1]
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%z6 = add i32 %z1, %z5 ; <i32> [#uses=0]
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br label %block6
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block5: ; preds = %block3
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%z7 = add i32 %z3, 1 ; <i32> [#uses=1]
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br label %block6
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block6: ; preds = %block5, %block4
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%z8 = phi i32 [ %z1, %block4 ], [ %z7, %block5 ] ; <i32> [#uses=1]
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%z9 = add i32 %z2, %z3 ; <i32> [#uses=2]
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%z10 = add i32 %z9, %z8 ; <i32> [#uses=0]
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%z11 = bitcast i32 12 to i32 ; <i32> [#uses=1]
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%z12 = add i32 %z9, %z11 ; <i32> [#uses=1]
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%z13 = add i32 %z12, %z3 ; <i32> [#uses=0]
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br label %block2
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block7: ; preds = %block2
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ret i32 %z1
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}
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