From 66be2e00ef29f8a747df2f7a57682e112266f525 Mon Sep 17 00:00:00 2001 From: "Kazushi (Jam) Marukawa" Date: Sun, 11 Oct 2020 17:33:47 +0900 Subject: [PATCH] [VE] Support copysign math function VE doesn't have instruction for copysign, so expand it. Add a regression test also. Reviewed By: simoll Differential Revision: https://reviews.llvm.org/D89228 --- llvm/lib/Target/VE/VEISelLowering.cpp | 9 ++ llvm/test/CodeGen/VE/fp_copysign.ll | 195 ++++++++++++++++++++++++++++++++++ 2 files changed, 204 insertions(+) create mode 100644 llvm/test/CodeGen/VE/fp_copysign.ll diff --git a/llvm/lib/Target/VE/VEISelLowering.cpp b/llvm/lib/Target/VE/VEISelLowering.cpp index 314dd9e..565ad7e 100644 --- a/llvm/lib/Target/VE/VEISelLowering.cpp +++ b/llvm/lib/Target/VE/VEISelLowering.cpp @@ -758,6 +758,15 @@ VETargetLowering::VETargetLowering(const TargetMachine &TM, } /// } Floating-point Ops + /// Floating-point math functions { + + // VE doesn't have following floating point math functions. + for (MVT VT : MVT::fp_valuetypes()) { + setOperationAction(ISD::FCOPYSIGN, VT, Expand); + } + + /// } Floating-point math functions + setStackPointerRegisterToSaveRestore(VE::SX11); // We have target-specific dag combine patterns for the following nodes: diff --git a/llvm/test/CodeGen/VE/fp_copysign.ll b/llvm/test/CodeGen/VE/fp_copysign.ll new file mode 100644 index 0000000..677e2b9 --- /dev/null +++ b/llvm/test/CodeGen/VE/fp_copysign.ll @@ -0,0 +1,195 @@ +; RUN: llc < %s -mtriple=ve | FileCheck %s + +;;; Test ‘llvm.copysign.*’ Intrinsic +;;; +;;; Syntax: +;;; This is an overloaded intrinsic. You can use llvm.copysign on any +;;; floating-point or vector of floating-point type. Not all targets +;;; support all types however. +;;; +;;; declare float @llvm.copysign.f32(float %Mag, float %Sgn) +;;; declare double @llvm.copysign.f64(double %Mag, double %Sgn) +;;; declare x86_fp80 @llvm.copysign.f80(x86_fp80 %Mag, x86_fp80 %Sgn) +;;; declare fp128 @llvm.copysign.f128(fp128 %Mag, fp128 %Sgn) +;;; declare ppc_fp128 @llvm.copysign.ppcf128(ppc_fp128 %Mag, ppc_fp128 %Sgn) +;;; +;;; Overview: +;;; The ‘llvm.copysign.*’ intrinsics return a value with the magnitude of +;;; the first operand and the sign of the second operand. +;;; +;;; Arguments: +;;; The arguments and return value are floating-point numbers of the same +;;; type. +;;; +;;; Semantics: +;;; This function returns the same values as the libm copysign functions +;;; would, and handles error conditions in the same way. +;;; +;;; Note: +;;; We test only float/double/fp128. + +; Function Attrs: nounwind readnone +define float @copysign_float_var(float %0, float %1) { +; CHECK-LABEL: copysign_float_var: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: sra.l %s1, %s1, 32 +; CHECK-NEXT: lea %s2, -2147483648 +; CHECK-NEXT: and %s2, %s2, (32)0 +; CHECK-NEXT: and %s1, %s1, %s2 +; CHECK-NEXT: sra.l %s0, %s0, 32 +; CHECK-NEXT: and %s0, %s0, (33)0 +; CHECK-NEXT: or %s0, %s0, %s1 +; CHECK-NEXT: sll %s0, %s0, 32 +; CHECK-NEXT: or %s11, 0, %s9 + %3 = tail call float @llvm.copysign.f32(float %0, float %1) + ret float %3 +} + +; Function Attrs: nounwind readnone speculatable willreturn +declare float @llvm.copysign.f32(float, float) + +; Function Attrs: nounwind readnone +define double @copysign_double_var(double %0, double %1) { +; CHECK-LABEL: copysign_double_var: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: and %s1, %s1, (1)1 +; CHECK-NEXT: and %s0, %s0, (1)0 +; CHECK-NEXT: or %s0, %s0, %s1 +; CHECK-NEXT: or %s11, 0, %s9 + %3 = tail call double @llvm.copysign.f64(double %0, double %1) + ret double %3 +} + +; Function Attrs: nounwind readnone speculatable willreturn +declare double @llvm.copysign.f64(double, double) + +; Function Attrs: nounwind readnone +define fp128 @copysign_quad_var(fp128 %0, fp128 %1) { +; CHECK-LABEL: copysign_quad_var: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: st %s3, 192(, %s11) +; CHECK-NEXT: st %s2, 200(, %s11) +; CHECK-NEXT: st %s1, 176(, %s11) +; CHECK-NEXT: st %s0, 184(, %s11) +; CHECK-NEXT: ld1b.zx %s0, 207(, %s11) +; CHECK-NEXT: ld1b.zx %s1, 191(, %s11) +; CHECK-NEXT: lea %s2, 128 +; CHECK-NEXT: and %s0, %s0, %s2 +; CHECK-NEXT: and %s1, %s1, (57)0 +; CHECK-NEXT: or %s0, %s1, %s0 +; CHECK-NEXT: st1b %s0, 191(, %s11) +; CHECK-NEXT: ld %s1, 176(, %s11) +; CHECK-NEXT: ld %s0, 184(, %s11) +; CHECK-NEXT: or %s11, 0, %s9 + %3 = tail call fp128 @llvm.copysign.f128(fp128 %0, fp128 %1) + ret fp128 %3 +} + +; Function Attrs: nounwind readnone speculatable willreturn +declare fp128 @llvm.copysign.f128(fp128, fp128) + +; Function Attrs: nounwind readnone +define float @copysign_float_zero(float %0) { +; CHECK-LABEL: copysign_float_zero: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: sra.l %s0, %s0, 32 +; CHECK-NEXT: lea %s1, -2147483648 +; CHECK-NEXT: and %s1, %s1, (32)0 +; CHECK-NEXT: and %s0, %s0, %s1 +; CHECK-NEXT: sll %s0, %s0, 32 +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call float @llvm.copysign.f32(float 0.000000e+00, float %0) + ret float %2 +} + +; Function Attrs: nounwind readnone +define double @copysign_double_zero(double %0) { +; CHECK-LABEL: copysign_double_zero: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: and %s0, %s0, (1)1 +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call double @llvm.copysign.f64(double 0.000000e+00, double %0) + ret double %2 +} + +; Function Attrs: nounwind readnone +define fp128 @copysign_quad_zero(fp128 %0) { +; CHECK-LABEL: copysign_quad_zero: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: lea %s2, .LCPI{{[0-9]+}}_0@lo +; CHECK-NEXT: and %s2, %s2, (32)0 +; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0@hi(, %s2) +; CHECK-NEXT: ld %s4, 8(, %s2) +; CHECK-NEXT: ld %s5, (, %s2) +; CHECK-NEXT: st %s1, 192(, %s11) +; CHECK-NEXT: st %s0, 200(, %s11) +; CHECK-NEXT: st %s5, 176(, %s11) +; CHECK-NEXT: st %s4, 184(, %s11) +; CHECK-NEXT: ld1b.zx %s0, 207(, %s11) +; CHECK-NEXT: ld1b.zx %s1, 191(, %s11) +; CHECK-NEXT: lea %s2, 128 +; CHECK-NEXT: and %s0, %s0, %s2 +; CHECK-NEXT: and %s1, %s1, (57)0 +; CHECK-NEXT: or %s0, %s1, %s0 +; CHECK-NEXT: st1b %s0, 191(, %s11) +; CHECK-NEXT: ld %s1, 176(, %s11) +; CHECK-NEXT: ld %s0, 184(, %s11) +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call fp128 @llvm.copysign.f128(fp128 0xL00000000000000000000000000000000, fp128 %0) + ret fp128 %2 +} + +; Function Attrs: nounwind readnone +define float @copysign_float_const(float %0) { +; CHECK-LABEL: copysign_float_const: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: sra.l %s0, %s0, 32 +; CHECK-NEXT: lea %s1, -2147483648 +; CHECK-NEXT: and %s1, %s1, (32)0 +; CHECK-NEXT: and %s0, %s0, %s1 +; CHECK-NEXT: lea %s1, 1073741824 +; CHECK-NEXT: or %s0, %s0, %s1 +; CHECK-NEXT: sll %s0, %s0, 32 +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call float @llvm.copysign.f32(float -2.000000e+00, float %0) + ret float %2 +} + +; Function Attrs: nounwind readnone +define double @copysign_double_const(double %0) { +; CHECK-LABEL: copysign_double_const: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: and %s0, %s0, (1)1 +; CHECK-NEXT: lea.sl %s1, 1073741824 +; CHECK-NEXT: or %s0, %s0, %s1 +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call double @llvm.copysign.f64(double -2.000000e+00, double %0) + ret double %2 +} + +; Function Attrs: nounwind readnone +define fp128 @copysign_quad_const(fp128 %0) { +; CHECK-LABEL: copysign_quad_const: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: lea %s2, .LCPI{{[0-9]+}}_0@lo +; CHECK-NEXT: and %s2, %s2, (32)0 +; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0@hi(, %s2) +; CHECK-NEXT: ld %s4, 8(, %s2) +; CHECK-NEXT: ld %s5, (, %s2) +; CHECK-NEXT: st %s1, 192(, %s11) +; CHECK-NEXT: st %s0, 200(, %s11) +; CHECK-NEXT: st %s5, 176(, %s11) +; CHECK-NEXT: st %s4, 184(, %s11) +; CHECK-NEXT: ld1b.zx %s0, 207(, %s11) +; CHECK-NEXT: ld1b.zx %s1, 191(, %s11) +; CHECK-NEXT: lea %s2, 128 +; CHECK-NEXT: and %s0, %s0, %s2 +; CHECK-NEXT: and %s1, %s1, (57)0 +; CHECK-NEXT: or %s0, %s1, %s0 +; CHECK-NEXT: st1b %s0, 191(, %s11) +; CHECK-NEXT: ld %s1, 176(, %s11) +; CHECK-NEXT: ld %s0, 184(, %s11) +; CHECK-NEXT: or %s11, 0, %s9 + %2 = tail call fp128 @llvm.copysign.f128(fp128 0xL0000000000000000C000000000000000, fp128 %0) + ret fp128 %2 +} -- 2.7.4