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| author | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2014-03-18 17:12:59 +0000 |
|---|---|---|
| committer | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2014-03-18 17:12:59 +0000 |
| commit | 6077ca9abb198829cce6c1cbbe8580c6ca1d2e9e (patch) | |
| tree | 85498d379607262df832e137956865d8ea301981 /test/CodeGen/X86/combine-or.ll | |
| parent | 7e18b99f1ed516f7883f806224a730302e4f6e28 (diff) | |
| download | llvm-6077ca9abb198829cce6c1cbbe8580c6ca1d2e9e.tar.gz llvm-6077ca9abb198829cce6c1cbbe8580c6ca1d2e9e.tar.bz2 llvm-6077ca9abb198829cce6c1cbbe8580c6ca1d2e9e.tar.xz | |
[DAGCombiner] teach how to simplify xor/and/or nodes according to the following rules:
1) (AND (shuf (A, C, Mask), shuf (B, C, Mask)) -> shuf (AND (A, B), C, Mask)
2) (OR (shuf (A, C, Mask), shuf (B, C, Mask)) -> shuf (OR (A, B), C, Mask)
3) (XOR (shuf (A, C, Mask), shuf (B, C, Mask)) -> shuf (XOR (A, B), V_0, Mask)
4) (AND (shuf (C, A, Mask), shuf (C, B, Mask)) -> shuf (C, AND (A, B), Mask)
5) (OR (shuf (C, A, Mask), shuf (C, B, Mask)) -> shuf (C, OR (A, B), Mask)
6) (XOR (shuf (C, A, Mask), shuf (C, B, Mask)) -> shuf (V_0, XOR (A, B), Mask)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204160 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/combine-or.ll')
| -rw-r--r-- | test/CodeGen/X86/combine-or.ll | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/test/CodeGen/X86/combine-or.ll b/test/CodeGen/X86/combine-or.ll index 60b6d75616..c1ce53334e 100644 --- a/test/CodeGen/X86/combine-or.ll +++ b/test/CodeGen/X86/combine-or.ll @@ -251,6 +251,7 @@ define <2 x i64> @test20(<2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: test20 ; CHECK-NOT: xorps ; CHECK: orps +; CHECK-NEXT: movq ; CHECK-NEXT: ret @@ -262,6 +263,7 @@ define <2 x i64> @test21(<2 x i64> %a, <2 x i64> %b) { } ; CHECK-LABEL: test21 ; CHECK: por +; CHECK-NEXT: pslldq ; CHECK-NEXT: ret |