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| author | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-08 12:54:54 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-08 12:54:54 +0000 |
| commit | 82609df64774c9738d231384efd293d9b87a02e1 (patch) | |
| tree | 75a02e00e39db35d9dfac10c1d4c2cfb0e42a362 /llvm/test/CodeGen/X86/avx-vbroadcast.ll | |
| parent | 8c783d4122bea6e3a28a12bcf9f1a051cf30eb8d (diff) | |
| download | bcm5719-llvm-82609df64774c9738d231384efd293d9b87a02e1.tar.gz bcm5719-llvm-82609df64774c9738d231384efd293d9b87a02e1.zip | |
AVX2: Build splat vectors by broadcasting a scalar from the constant pool.
Previously we used three instructions to broadcast an immediate value into a
vector register.
On Sandybridge we continue to load the broadcasted value from the constant pool.
llvm-svn: 154284
Diffstat (limited to 'llvm/test/CodeGen/X86/avx-vbroadcast.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/avx-vbroadcast.ll | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/llvm/test/CodeGen/X86/avx-vbroadcast.ll b/llvm/test/CodeGen/X86/avx-vbroadcast.ll index 5bf9f4f2e2f..148ae7329f4 100644 --- a/llvm/test/CodeGen/X86/avx-vbroadcast.ll +++ b/llvm/test/CodeGen/X86/avx-vbroadcast.ll @@ -47,7 +47,7 @@ entry: ;;;; 128-bit versions ; CHECK: vbroadcastss (% -define <4 x float> @E(float* %ptr) nounwind uwtable readnone ssp { +define <4 x float> @e(float* %ptr) nounwind uwtable readnone ssp { entry: %q = load float* %ptr, align 4 %vecinit.i = insertelement <4 x float> undef, float %q, i32 0 @@ -57,6 +57,19 @@ entry: ret <4 x float> %vecinit6.i } + +; CHECK: _e2 +; CHECK-NOT: vbroadcastss +; CHECK: ret +define <4 x float> @_e2(float* %ptr) nounwind uwtable readnone ssp { + %vecinit.i = insertelement <4 x float> undef, float 0xbf80000000000000, i32 0 + %vecinit2.i = insertelement <4 x float> %vecinit.i, float 0xbf80000000000000, i32 1 + %vecinit4.i = insertelement <4 x float> %vecinit2.i, float 0xbf80000000000000, i32 2 + %vecinit6.i = insertelement <4 x float> %vecinit4.i, float 0xbf80000000000000, i32 3 + ret <4 x float> %vecinit6.i +} + + ; CHECK: vbroadcastss (% define <4 x i32> @F(i32* %ptr) nounwind uwtable readnone ssp { entry: @@ -71,7 +84,7 @@ entry: ; Unsupported vbroadcasts ; CHECK: _G -; CHECK-NOT: vbroadcastsd (% +; CHECK-NOT: broadcast (% ; CHECK: ret define <2 x i64> @G(i64* %ptr) nounwind uwtable readnone ssp { entry: @@ -82,7 +95,7 @@ entry: } ; CHECK: _H -; CHECK-NOT: vbroadcastss +; CHECK-NOT: broadcast ; CHECK: ret define <4 x i32> @H(<4 x i32> %a) { %x = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef> @@ -90,7 +103,7 @@ define <4 x i32> @H(<4 x i32> %a) { } ; CHECK: _I -; CHECK-NOT: vbroadcastsd (% +; CHECK-NOT: broadcast (% ; CHECK: ret define <2 x double> @I(double* %ptr) nounwind uwtable readnone ssp { entry: |
