51 lines
1.4 KiB
LLVM
51 lines
1.4 KiB
LLVM
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; RUN: opt < %s -early-cse-memssa -earlycse-debug-hash -gvn-hoist -S | FileCheck %s
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; Make sure opt doesn't crash. On top of that, the instructions
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; of the side blocks should be hoisted to the entry block.
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%s = type { i32, i64 }
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%S = type { %s, i32 }
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;CHECK-LABEL: @foo
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define void @foo(i32* %arg) {
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bb0:
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%0 = bitcast i32* %arg to %S*
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%call.idx.i = getelementptr %S, %S* %0, i64 0, i32 0, i32 0
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%call.idx.val.i = load i32, i32* %call.idx.i
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br label %bb1
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;CHECK: bb1:
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;CHECK: %call264 = call zeroext i1 @bar
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;CHECK: store i32 %call.idx.val.i, i32* %call.idx.i
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;CHECK: %1 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
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;CHECK: store i64 undef, i64* %1
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;CHECK: br i1 %call264, label %bb2, label %bb3
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bb1:
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%call264 = call zeroext i1 @bar()
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br i1 %call264, label %bb2, label %bb3
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;CHECK: bb2:
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;CHECK-NOT: store i32 %call.idx.val.i, i32* %call.idx.i
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;CHECK-NOT: store i64 undef, i64* %{.*}
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bb2:
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store i32 %call.idx.val.i, i32* %call.idx.i
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%1 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
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store i64 undef, i64* %1
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ret void
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;CHECK: bb3:
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;CHECK-NOT: store i32 %call.idx.val.i, i32* %call.idx.i
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;CHECK-NOT: store i64 undef, i64* %{.*}
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bb3:
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store i32 %call.idx.val.i, i32* %call.idx.i
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%2 = getelementptr inbounds %S, %S* %0, i64 0, i32 0, i32 1
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store i64 undef, i64* %2
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ret void
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}
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declare zeroext i1 @bar()
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