forked from OSchip/llvm-project
[VE] Support fneg and frem
VE doesn't have fneg or frem instruction, so change them to expand. Add regression tests also. Reviewed By: simoll Differential Revision: https://reviews.llvm.org/D89205
This commit is contained in:
Kazushi (Jam) Marukawa
parent
6c32bc4875
commit
9d6d4b07a2
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@ -740,6 +740,14 @@ VETargetLowering::VETargetLowering(const TargetMachine &TM,
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/// } Conversion
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/// Floating-point Ops {
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/// Note: Floating-point operations are fneg, fadd, fsub, fmul, fdiv, frem,
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/// and fcmp.
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// VE doesn't have following floating point operations.
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for (MVT VT : MVT::fp_valuetypes()) {
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setOperationAction(ISD::FNEG, VT, Expand);
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setOperationAction(ISD::FREM, VT, Expand);
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}
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// VE doesn't have fdiv of f128.
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setOperationAction(ISD::FDIV, MVT::f128, Expand);
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@ -0,0 +1,67 @@
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; RUN: llc < %s -mtriple=ve | FileCheck %s
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;;; Test ‘fneg’ Instruction
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;;;
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;;; Syntax:
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;;; <result> = fneg [fast-math flags]* <ty> <op1> ; yields ty:result
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;;;
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;;; Overview:
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;;; The ‘fneg’ instruction returns the negation of its operand.
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;;;
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;;; Arguments:
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;;; The argument to the ‘fneg’ instruction must be a floating-point or
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;;; vector of floating-point values.
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;;;
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;;; Semantics:
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;;;
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;;; The value produced is a copy of the operand with its sign bit flipped.
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;;; This instruction can also take any number of fast-math flags, which are
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;;; optimization hints to enable otherwise unsafe floating-point
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;;; optimizations.
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;;;
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;;; Example:
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;;; <result> = fneg float %val ; yields float:result = -%var
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;;;
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;;; Note:
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;;; We test only float/double/fp128.
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; Function Attrs: norecurse nounwind readnone
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define float @fneg_float(float %0) {
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; CHECK-LABEL: fneg_float:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: sra.l %s0, %s0, 32
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; CHECK-NEXT: lea %s1, -2147483648
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; CHECK-NEXT: and %s1, %s1, (32)0
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; CHECK-NEXT: xor %s0, %s0, %s1
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; CHECK-NEXT: sll %s0, %s0, 32
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = fneg float %0
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ret float %2
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}
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; Function Attrs: norecurse nounwind readnone
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define double @fneg_double(double %0) {
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; CHECK-LABEL: fneg_double:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: xor %s0, %s0, (1)1
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = fneg double %0
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ret double %2
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}
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; Function Attrs: norecurse nounwind readnone
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define fp128 @fneg_quad(fp128 %0) {
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; CHECK-LABEL: fneg_quad:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: st %s1, 176(, %s11)
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; CHECK-NEXT: st %s0, 184(, %s11)
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; CHECK-NEXT: ld1b.zx %s0, 191(, %s11)
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; CHECK-NEXT: lea %s1, 128
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; CHECK-NEXT: xor %s0, %s0, %s1
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; CHECK-NEXT: st1b %s0, 191(, %s11)
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; CHECK-NEXT: ld %s1, 176(, %s11)
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; CHECK-NEXT: ld %s0, 184(, %s11)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = fneg fp128 %0
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ret fp128 %2
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}
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@ -0,0 +1,171 @@
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; RUN: llc < %s -mtriple=ve | FileCheck %s
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;;; Test ‘frem’ Instruction
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;;;
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;;; Syntax:
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;;; <result> = frem [fast-math flags]* <ty> <op1>, <op2> ; yields ty:result
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;;;
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;;; Overview:
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;;; The ‘frem’ instruction returns the remainder from the division of its two
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;;; operands.
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;;;
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;;; Arguments:
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;;; The two arguments to the ‘frem’ instruction must be floating-point or
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;;; vector of floating-point values. Both arguments must have identical types.
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;;;
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;;; Semantics:
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;;; The value produced is the floating-point remainder of the two operands.
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;;; This is the same output as a libm ‘fmod’ function, but without any
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;;; possibility of setting errno. The remainder has the same sign as the
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;;; dividend. This instruction is assumed to execute in the default
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;;; floating-point environment. This instruction can also take any number
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;;; of fast-math flags, which are optimization hints to enable otherwise
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;;; unsafe floating-point optimizations:
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;;;
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;;; Example:
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;;;
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;;; <result> = frem float 4.0, %var ; yields float:result = 4.0 % %var
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;;;
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;;; Note:
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;;; We test only float/double/fp128.
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;;; We have no way to generated frem from C source code, so convert fdiv
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;;; to frem by using sed program.
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; Function Attrs: norecurse nounwind readnone
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define float @frem_float_var(float %0, float %1) {
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; CHECK-LABEL: frem_float_var:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: lea %s2, fmodf@lo
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; CHECK-NEXT: and %s2, %s2, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodf@hi(, %s2)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%3 = frem float %0, %1
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ret float %3
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}
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; Function Attrs: norecurse nounwind readnone
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define double @frem_double_var(double %0, double %1) {
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; CHECK-LABEL: frem_double_var:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: lea %s2, fmod@lo
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; CHECK-NEXT: and %s2, %s2, (32)0
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; CHECK-NEXT: lea.sl %s12, fmod@hi(, %s2)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%3 = frem double %0, %1
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ret double %3
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}
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; Function Attrs: norecurse nounwind readnone
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define fp128 @frem_quad_var(fp128 %0, fp128 %1) {
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; CHECK-LABEL: frem_quad_var:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: lea %s4, fmodl@lo
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; CHECK-NEXT: and %s4, %s4, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodl@hi(, %s4)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%3 = frem fp128 %0, %1
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ret fp128 %3
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}
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; Function Attrs: norecurse nounwind readnone
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define float @frem_float_zero(float %0) {
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; CHECK-LABEL: frem_float_zero:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s1, 0, %s0
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; CHECK-NEXT: lea.sl %s0, 0
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; CHECK-NEXT: lea %s2, fmodf@lo
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; CHECK-NEXT: and %s2, %s2, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodf@hi(, %s2)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem float 0.000000e+00, %0
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ret float %2
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}
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; Function Attrs: norecurse nounwind readnone
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define double @frem_double_zero(double %0) {
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; CHECK-LABEL: frem_double_zero:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s1, 0, %s0
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; CHECK-NEXT: lea %s0, fmod@lo
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lea.sl %s12, fmod@hi(, %s0)
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; CHECK-NEXT: lea.sl %s0, 0
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem double 0.000000e+00, %0
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ret double %2
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}
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; Function Attrs: norecurse nounwind readnone
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define fp128 @frem_quad_zero(fp128 %0) {
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; CHECK-LABEL: frem_quad_zero:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s2, 0, %s0
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; CHECK-NEXT: or %s3, 0, %s1
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; CHECK-NEXT: lea %s0, .LCPI{{[0-9]+}}_0@lo
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lea.sl %s4, .LCPI{{[0-9]+}}_0@hi(, %s0)
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; CHECK-NEXT: ld %s0, 8(, %s4)
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; CHECK-NEXT: ld %s1, (, %s4)
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; CHECK-NEXT: lea %s4, fmodl@lo
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; CHECK-NEXT: and %s4, %s4, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodl@hi(, %s4)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem fp128 0xL00000000000000000000000000000000, %0
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ret fp128 %2
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}
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; Function Attrs: norecurse nounwind readnone
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define float @frem_float_cont(float %0) {
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; CHECK-LABEL: frem_float_cont:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s1, 0, %s0
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; CHECK-NEXT: lea.sl %s0, -1073741824
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; CHECK-NEXT: lea %s2, fmodf@lo
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; CHECK-NEXT: and %s2, %s2, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodf@hi(, %s2)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem float -2.000000e+00, %0
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ret float %2
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}
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; Function Attrs: norecurse nounwind readnone
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define double @frem_double_cont(double %0) {
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; CHECK-LABEL: frem_double_cont:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s1, 0, %s0
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; CHECK-NEXT: lea %s0, fmod@lo
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lea.sl %s12, fmod@hi(, %s0)
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; CHECK-NEXT: lea.sl %s0, -1073741824
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem double -2.000000e+00, %0
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ret double %2
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}
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; Function Attrs: norecurse nounwind readnone
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define fp128 @frem_quad_cont(fp128 %0) {
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; CHECK-LABEL: frem_quad_cont:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: or %s2, 0, %s0
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; CHECK-NEXT: or %s3, 0, %s1
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; CHECK-NEXT: lea %s0, .LCPI{{[0-9]+}}_0@lo
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lea.sl %s4, .LCPI{{[0-9]+}}_0@hi(, %s0)
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; CHECK-NEXT: ld %s0, 8(, %s4)
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; CHECK-NEXT: ld %s1, (, %s4)
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; CHECK-NEXT: lea %s4, fmodl@lo
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; CHECK-NEXT: and %s4, %s4, (32)0
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; CHECK-NEXT: lea.sl %s12, fmodl@hi(, %s4)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: or %s11, 0, %s9
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%2 = frem fp128 0xL0000000000000000C000000000000000, %0
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ret fp128 %2
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}
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