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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-07-31 04:43:41 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-07-31 04:43:41 +0000 |
| commit | 592ad6a82facd7d7ee58c599767a1b0c85eda0c5 (patch) | |
| tree | 8057dc0ca5d04025cf692adfaa7651053a423780 /test/Transforms | |
| parent | c47690264abd6ec6bdeab86ce057e99bb5d39fe4 (diff) | |
| download | external_llvm-592ad6a82facd7d7ee58c599767a1b0c85eda0c5.zip external_llvm-592ad6a82facd7d7ee58c599767a1b0c85eda0c5.tar.gz external_llvm-592ad6a82facd7d7ee58c599767a1b0c85eda0c5.tar.bz2 | |
Add a small gep optimization I noticed was missing while reading some IL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136585 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/getelementptr.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/getelementptr.ll b/test/Transforms/InstCombine/getelementptr.ll index 26c0e47..1c120ec 100644 --- a/test/Transforms/InstCombine/getelementptr.ll +++ b/test/Transforms/InstCombine/getelementptr.ll @@ -472,3 +472,23 @@ entry: ; CHECK: @pr10322_f1 ; CHECK: %tmp2 = getelementptr inbounds %pr10322_t* %arrayidx8, i64 0, i32 0 } + +; Test that we combine the last two geps in this sequence, before we +; would wait for gep1 and gep2 to be combined and never combine 2 and 3. +%three_gep_t = type {i32} +%three_gep_t2 = type {%three_gep_t} + +define void @three_gep_f(%three_gep_t2* %x) { + %gep1 = getelementptr %three_gep_t2* %x, i64 2 + call void @three_gep_h(%three_gep_t2* %gep1) + %gep2 = getelementptr %three_gep_t2* %gep1, i64 0, i32 0 + %gep3 = getelementptr %three_gep_t* %gep2, i64 0, i32 0 + call void @three_gep_g(i32* %gep3) + +; CHECK: @three_gep_f +; CHECK: %gep3 = getelementptr %three_gep_t2* %gep1, i64 0, i32 0, i32 0 + ret void +} + +declare void @three_gep_g(i32*) +declare void @three_gep_h(%three_gep_t2*) |