0676acb6fd
Should cover most of the tests for GVN, GVNHoist, GVNSink, GlobalOpt, GlobalSplit, InstCombine, Reassociate, SROA and TailCallElim that had not been updated earlier.
43 lines
1.3 KiB
LLVM
43 lines
1.3 KiB
LLVM
; RUN: opt < %s -S -passes=gvn-sink | FileCheck %s
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; Because %tmp17 has flipped operands to its equivalents %tmp14 and %tmp7, we
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; can't sink the zext as we'd need a shuffling PHI in between.
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;
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; Just sinking the zext isn't profitable, so ensure nothing is sunk.
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; CHECK-LABEL: @hoge
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; CHECK-NOT: bb18.gvnsink.split
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define void @hoge() {
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bb:
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br i1 undef, label %bb4, label %bb11
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bb4: ; preds = %bb3
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br i1 undef, label %bb6, label %bb8
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bb6: ; preds = %bb5
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%tmp = zext i16 undef to i64
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%tmp7 = add i64 %tmp, undef
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br label %bb18
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bb8: ; preds = %bb5
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%tmp9 = zext i16 undef to i64
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br label %bb18
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bb11: ; preds = %bb10
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br i1 undef, label %bb12, label %bb15
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bb12: ; preds = %bb11
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%tmp13 = zext i16 undef to i64
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%tmp14 = add i64 %tmp13, undef
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br label %bb18
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bb15: ; preds = %bb11
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%tmp16 = zext i16 undef to i64
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%tmp17 = add i64 undef, %tmp16
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br label %bb18
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bb18: ; preds = %bb15, %bb12, %bb8, %bb6
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%tmp19 = phi i64 [ %tmp7, %bb6 ], [ undef, %bb8 ], [ %tmp14, %bb12 ], [ %tmp17, %bb15 ]
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unreachable
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}
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