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| author | Nadav Rotem <nadav.rotem@intel.com> | 2012-05-10 12:22:05 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2012-05-10 12:22:05 +0000 |
| commit | 5fc2187a025bb77b9023239edf12868d833630fe (patch) | |
| tree | 21dd2e861f00e8848aa02612232d58a60fd9e616 /test/CodeGen/X86/avx-vbroadcast.ll | |
| parent | 7b521ad6eea8ac25960a4efecb9578c18fbc0e93 (diff) | |
| download | llvm-5fc2187a025bb77b9023239edf12868d833630fe.tar.gz llvm-5fc2187a025bb77b9023239edf12868d833630fe.tar.bz2 llvm-5fc2187a025bb77b9023239edf12868d833630fe.tar.xz | |
Generate AVX/AVX2 shuffles even when there is a memory op somewhere else in the program.
Starting r155461 we are able to select patterns for vbroadcast even when the load op is used by other users.
Fix PR11900.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156539 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/avx-vbroadcast.ll')
| -rw-r--r-- | test/CodeGen/X86/avx-vbroadcast.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avx-vbroadcast.ll b/test/CodeGen/X86/avx-vbroadcast.ll index 148ae7329f..26ee1d33a1 100644 --- a/test/CodeGen/X86/avx-vbroadcast.ll +++ b/test/CodeGen/X86/avx-vbroadcast.ll @@ -112,3 +112,20 @@ entry: %vecinit2.i = insertelement <2 x double> %vecinit.i, double %q, i32 1 ret <2 x double> %vecinit2.i } + +; CHECK: _RR +; CHECK: vbroadcastss (% +; CHECK: ret +define <4 x float> @_RR(float* %ptr, i32* %k) nounwind uwtable readnone ssp { +entry: + %q = load float* %ptr, align 4 + %vecinit.i = insertelement <4 x float> undef, float %q, i32 0 + %vecinit2.i = insertelement <4 x float> %vecinit.i, float %q, i32 1 + %vecinit4.i = insertelement <4 x float> %vecinit2.i, float %q, i32 2 + %vecinit6.i = insertelement <4 x float> %vecinit4.i, float %q, i32 3 + ; force a chain + %j = load i32* %k, align 4 + store i32 %j, i32* undef + ret <4 x float> %vecinit6.i +} + |