[llvm] 66be2e0 - [VE] Support copysign math function
Kazushi Marukawa via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 12 05:06:27 PDT 2020
Author: Kazushi (Jam) Marukawa
Date: 2020-10-12T21:06:19+09:00
New Revision: 66be2e00ef29f8a747df2f7a57682e112266f525
URL: https://github.com/llvm/llvm-project/commit/66be2e00ef29f8a747df2f7a57682e112266f525
DIFF: https://github.com/llvm/llvm-project/commit/66be2e00ef29f8a747df2f7a57682e112266f525.diff
LOG: [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
Added:
llvm/test/CodeGen/VE/fp_copysign.ll
Modified:
llvm/lib/Target/VE/VEISelLowering.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/VE/VEISelLowering.cpp b/llvm/lib/Target/VE/VEISelLowering.cpp
index 314dd9ed6c5e..565ad7ecd53d 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 000000000000..677e2b96abb4
--- /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 at lo
+; CHECK-NEXT: and %s2, %s2, (32)0
+; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0 at 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 at lo
+; CHECK-NEXT: and %s2, %s2, (32)0
+; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0 at 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
+}
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