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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2014-04-18 10:45:33 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2014-04-18 10:45:33 +0000 |
| commit | c32e261a1a363da829a58eb37696205c67110eb2 (patch) | |
| tree | 7c270734f03a19ea3efdd3b3f5f81f48cd05aded /test | |
| parent | 64eed05a3a5e5e577eb14fa0fef57cec54df1850 (diff) | |
| download | llvm-c32e261a1a363da829a58eb37696205c67110eb2.tar.gz llvm-c32e261a1a363da829a58eb37696205c67110eb2.tar.bz2 llvm-c32e261a1a363da829a58eb37696205c67110eb2.tar.xz | |
X86: Pattern match scalar loads + vcvtph2ps into just vcvtph2ps.
vcvtph2ps only reads the lower 64 bits of the address passed to the
intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206579 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/f16c-intrinsics.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/f16c-intrinsics.ll b/test/CodeGen/X86/f16c-intrinsics.ll index 2135f9409c..514d929f44 100644 --- a/test/CodeGen/X86/f16c-intrinsics.ll +++ b/test/CodeGen/X86/f16c-intrinsics.ll @@ -1,4 +1,5 @@ ; RUN: llc < %s -march=x86 -mattr=+avx,+f16c | FileCheck %s +; RUN: llc < %s -march=x86-64 -mattr=+avx,+f16c | FileCheck %s define <4 x float> @test_x86_vcvtph2ps_128(<8 x i16> %a0) { ; CHECK: vcvtph2ps @@ -30,3 +31,16 @@ define <8 x i16> @test_x86_vcvtps2ph_256(<8 x float> %a0) { ret <8 x i16> %res } declare <8 x i16> @llvm.x86.vcvtps2ph.256(<8 x float>, i32) nounwind readonly + +define <4 x float> @test_x86_vcvtps2ph_128_scalar(i64* %ptr) { +; CHECK-LABEL: test_x86_vcvtps2ph_128_scalar +; CHECK-NOT: vmov +; CHECK: vcvtph2ps (% + + %load = load i64* %ptr + %ins1 = insertelement <2 x i64> undef, i64 %load, i32 0 + %ins2 = insertelement <2 x i64> %ins1, i64 0, i32 1 + %bc = bitcast <2 x i64> %ins2 to <8 x i16> + %res = tail call <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16> %bc) #2 + ret <4 x float> %res +} |