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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-03-07 18:48:40 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-03-07 18:48:40 +0000 |
| commit | 02c2ecf9f166522cc1c58dd484668c1cbacc0c6e (patch) | |
| tree | 0721321259962df552b6c98dce098a5cda4a7a9f /test | |
| parent | 784ae47413e1adf3b64ed5546f88b39ab52a9281 (diff) | |
| download | external_llvm-02c2ecf9f166522cc1c58dd484668c1cbacc0c6e.zip external_llvm-02c2ecf9f166522cc1c58dd484668c1cbacc0c6e.tar.gz external_llvm-02c2ecf9f166522cc1c58dd484668c1cbacc0c6e.tar.bz2 | |
X86: Fold EXTRACT_SUBVECTORs of a BUILD_VECTOR into a smaller BUILD_VECTOR.
That can usually be lowered efficiently and is common in sandybridge code.
It would be nice to do this in DAGCombiner but we can't insert arbitrary
BUILD_VECTORs this late.
Fixes PR15462.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176634 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/avx-shift.ll | 1 | ||||
| -rw-r--r-- | test/CodeGen/X86/avx-vinsertf128.ll | 16 | ||||
| -rw-r--r-- | test/CodeGen/X86/avx-vpermil.ll | 4 |
3 files changed, 18 insertions, 3 deletions
diff --git a/test/CodeGen/X86/avx-shift.ll b/test/CodeGen/X86/avx-shift.ll index b0bff45..01eb736 100644 --- a/test/CodeGen/X86/avx-shift.ll +++ b/test/CodeGen/X86/avx-shift.ll @@ -105,7 +105,6 @@ define <32 x i8> @vshift12(<32 x i8> %a) nounwind readnone { ; CHECK: _vshift08 ; CHECK: vextractf128 $1 ; CHECK: vpslld $23 -; CHECK: vextractf128 $1 ; CHECK: vpslld $23 define <8 x i32> @vshift08(<8 x i32> %a) nounwind { %bitop = shl <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>, %a diff --git a/test/CodeGen/X86/avx-vinsertf128.ll b/test/CodeGen/X86/avx-vinsertf128.ll index 9a954fe..ee37b27 100644 --- a/test/CodeGen/X86/avx-vinsertf128.ll +++ b/test/CodeGen/X86/avx-vinsertf128.ll @@ -129,3 +129,19 @@ entry: %2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> undef, <4 x float> %1, i8 1) ret <8 x float> %2 } + +define void @PR15462(i64* %p) { + store i64 0, i64* %p + %q = getelementptr i64* %p, i64 1 + store i64 0, i64* %q + %r = getelementptr i64* %p, i64 2 + store i64 0, i64* %r + %s = getelementptr i64* %p, i64 3 + store i64 0, i64* %s + ret void + +; CHECK: PR15462: +; CHECK: vxorps %xmm +; CHECK: vmovups +; CHECK: vmovups +} diff --git a/test/CodeGen/X86/avx-vpermil.ll b/test/CodeGen/X86/avx-vpermil.ll index cb904b9..7f2f9d8 100644 --- a/test/CodeGen/X86/avx-vpermil.ll +++ b/test/CodeGen/X86/avx-vpermil.ll @@ -45,8 +45,8 @@ entry: ret <8 x float> %shuffle } -; CHECK: palignr -; CHECK: palignr +; CHECK: palignr $8 +; CHECK: psrldq $8 define <8 x float> @funcF(<8 x float> %a) nounwind uwtable readnone ssp { entry: %shuffle = shufflevector <8 x float> %a, <8 x float> zeroinitializer, <8 x i32> <i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9> |