aa91d90cb0
This preserves the semantis of fneg and matches what we do in LegalizeDAG. I kept the legal FSUB check to force unrolling for some targets that don't have FSUB but have XOR. On Aarch64, using xor broke some tests that expected to see a (v1f64 (fma (insertvector_elt (f64 (fneg (extractvectorelt X)))))) pattern.
81 lines
2.0 KiB
LLVM
81 lines
2.0 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu \
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; RUN: -mattr=+altivec -mattr=+vsx | FileCheck %s
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu \
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; RUN: -mattr=+altivec -mattr=-vsx | FileCheck %s \
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; RUN: -check-prefix=CHECK-NOVSX
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define <4 x float> @test_float(<4 x float> %aa) #0 {
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; CHECK-LABEL: test_float
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; CHECK-NOVSX-LABEL: test_float
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; CHECK-NOVSX-LABEL: test_float
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entry:
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%0 = tail call <4 x float> @llvm.fabs.v4f32(<4 x float> %aa) #2
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ret <4 x float> %0
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}
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; Function Attrs: nounwind readnone
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declare <4 x float> @llvm.fabs.v4f32(<4 x float>) #1
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; CHECK: xvabssp
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; CHECK: blr
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: blr
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define <4 x float> @test2_float(<4 x float> %aa) #0 {
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; CHECK-LABEL: test2_float
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; CHECK-NOVSX-LABEL: test2_float
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entry:
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%0 = tail call <4 x float> @llvm.fabs.v4f32(<4 x float> %aa) #2
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%sub = fsub <4 x float> <float -0.000000e+00, float -0.000000e+00,
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float -0.000000e+00, float -0.000000e+00>, %0
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ret <4 x float> %sub
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}
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; CHECK: xvnabssp
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; CHECK: blr
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; CHECK-NOVSX: vspltisb
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: vxor
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; CHECK-NOVSX: blr
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define <2 x double> @test_double(<2 x double> %aa) #0 {
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; CHECK-LABEL: test_double
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; CHECK-NOVSX-LABEL: test_double
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entry:
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%0 = tail call <2 x double> @llvm.fabs.v2f64(<2 x double> %aa) #2
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ret <2 x double> %0
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}
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; Function Attrs: nounwind readnone
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declare <2 x double> @llvm.fabs.v2f64(<2 x double>) #1
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; CHECK: xvabsdp
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; CHECK: blr
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: fabs
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; CHECK-NOVSX: blr
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define <2 x double> @foo(<2 x double> %aa) #0 {
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entry:
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%0 = tail call <2 x double> @llvm.fabs.v2f64(<2 x double> %aa) #2
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%sub = fsub <2 x double> <double -0.000000e+00, double -0.000000e+00>, %0
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ret <2 x double> %sub
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}
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; CHECK: xvnabsdp
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; CHECK: blr
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; CHECK-NOVSX: fnabs
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; CHECK-NOVSX: fnabs
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; CHECK-NOVSX: blr
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