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| author | David Majnemer <david.majnemer@gmail.com> | 2016-09-15 20:10:09 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-09-15 20:10:09 +0000 |
| commit | 8b16da87444eb1399ce32e7027e2ab5c69c42e5e (patch) | |
| tree | 0126c7ed05ff7802951be7a3e53c6a594d992537 /llvm/test/Transforms | |
| parent | 19b2aed3080eb88f982dfe97a356afa7e1467d9b (diff) | |
| download | bcm5719-llvm-8b16da87444eb1399ce32e7027e2ab5c69c42e5e.tar.gz bcm5719-llvm-8b16da87444eb1399ce32e7027e2ab5c69c42e5e.zip | |
[InstCombine] Do not RAUW a constant GEP
canRewriteGEPAsOffset expects to process instructions, not constants.
This fixes PR30342.
llvm-svn: 281650
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/indexed-gep-compares.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/indexed-gep-compares.ll b/llvm/test/Transforms/InstCombine/indexed-gep-compares.ll index 495881549e2..64dff271297 100644 --- a/llvm/test/Transforms/InstCombine/indexed-gep-compares.ll +++ b/llvm/test/Transforms/InstCombine/indexed-gep-compares.ll @@ -167,4 +167,24 @@ lpad: ; CHECK: ret i32* %[[PTR]] } + +@pr30402 = constant i64 3 +define i1 @test7() { +entry: + br label %bb7 + +bb7: ; preds = %bb10, %entry-block + %phi = phi i64* [ @pr30402, %entry ], [ getelementptr inbounds (i64, i64* @pr30402, i32 1), %bb7 ] + %cmp = icmp eq i64* %phi, getelementptr inbounds (i64, i64* @pr30402, i32 1) + br i1 %cmp, label %bb10, label %bb7 + +bb10: + ret i1 %cmp +} +; CHECK-LABEL: @test7( +; CHECK: %[[phi:.*]] = phi i64* [ @pr30402, %entry ], [ getelementptr inbounds (i64, i64* @pr30402, i32 1), %bb7 ] +; CHECK: %[[cmp:.*]] = icmp eq i64* %[[phi]], getelementptr inbounds (i64, i64* @pr30402, i32 1) +; CHECK: ret i1 %[[cmp]] + + declare i32 @__gxx_personality_v0(...) |
