diff options
| author | Michael Liao <michael.liao@intel.com> | 2012-10-10 16:53:28 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-10-10 16:53:28 +0000 |
| commit | 44c2d61b6703469a95fcd2d5397c5d09a67e75c1 (patch) | |
| tree | ded8fbfaa22a59e8aca8944eb2971cd0e0b42565 /test/CodeGen/X86/fp-load-trunc.ll | |
| parent | 9d796db3e746c31dbdb605510c53b3da98d71b38 (diff) | |
| download | llvm-44c2d61b6703469a95fcd2d5397c5d09a67e75c1.tar.gz llvm-44c2d61b6703469a95fcd2d5397c5d09a67e75c1.tar.bz2 llvm-44c2d61b6703469a95fcd2d5397c5d09a67e75c1.tar.xz | |
Add support for FP_ROUND from v2f64 to v2f32
- Due to the current matching vector elements constraints in
ISD::FP_ROUND, rounding from v2f64 to v4f32 (after legalization from
v2f32) is scalarized. Add a customized v2f32 widening to convert it
into a target-specific X86ISD::VFPROUND to work around this
constraints.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165631 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/fp-load-trunc.ll')
| -rw-r--r-- | test/CodeGen/X86/fp-load-trunc.ll | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fp-load-trunc.ll b/test/CodeGen/X86/fp-load-trunc.ll new file mode 100644 index 0000000000..8430a31b3a --- /dev/null +++ b/test/CodeGen/X86/fp-load-trunc.ll @@ -0,0 +1,61 @@ +; RUN: llc < %s -march=x86 -mattr=+sse2,-avx | FileCheck %s +; RUN: llc < %s -march=x86 -mattr=+avx | FileCheck %s --check-prefix=AVX + +define <1 x float> @test1(<1 x double>* %p) nounwind { +; CHECK: test1 +; CHECK: cvtsd2ss +; CHECK: ret +; AVX: test1 +; AVX: vcvtsd2ss +; AVX: ret + %x = load <1 x double>* %p + %y = fptrunc <1 x double> %x to <1 x float> + ret <1 x float> %y +} + +define <2 x float> @test2(<2 x double>* %p) nounwind { +; CHECK: test2 +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: ret +; AVX: test2 +; AVX: vcvtpd2psx {{[0-9]*}}(%{{.*}}) +; AVX: ret + %x = load <2 x double>* %p + %y = fptrunc <2 x double> %x to <2 x float> + ret <2 x float> %y +} + +define <4 x float> @test3(<4 x double>* %p) nounwind { +; CHECK: test3 +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: movlhps +; CHECK: ret +; AVX: test3 +; AVX: vcvtpd2psy {{[0-9]*}}(%{{.*}}) +; AVX: ret + %x = load <4 x double>* %p + %y = fptrunc <4 x double> %x to <4 x float> + ret <4 x float> %y +} + +define <8 x float> @test4(<8 x double>* %p) nounwind { +; CHECK: test4 +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: movlhps +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: cvtpd2ps {{[0-9]*}}(%{{.*}}) +; CHECK: movlhps +; CHECK: ret +; AVX: test4 +; AVX: vcvtpd2psy {{[0-9]*}}(%{{.*}}) +; AVX: vcvtpd2psy {{[0-9]*}}(%{{.*}}) +; AVX: vinsertf128 +; AVX: ret + %x = load <8 x double>* %p + %y = fptrunc <8 x double> %x to <8 x float> + ret <8 x float> %y +} + + |