mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-18 10:31:57 +00:00
760a46522a
The FPv4-SP floating-point unit is generally referred to as single-precision only, but it does have double-precision registers and load, store and GPR<->DPR move instructions which operate on them. This patch enables the use of these registers, the main advantage of which is that we now comply with the AAPCS-VFP calling convention. This partially reverts r209650, which added some AAPCS-VFP support, but did not handle return values or alignment of double arguments in registers. This patch also adds tests for Thumb2 code generation for floating-point instructions and intrinsics, which previously only existed for ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216172 91177308-0d34-0410-b5e6-96231b3b80d8
215 lines
5.6 KiB
LLVM
215 lines
5.6 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-none-eabi -mcpu=cortex-m3 | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=NONE
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; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m4 | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=SP
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; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a7 | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP
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declare double @llvm.sqrt.f64(double %Val)
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define double @sqrt_d(double %a) {
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; CHECK-LABEL: sqrt_d:
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; SOFT: {{(bl|b)}} sqrt
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; HARD: vsqrt.f64 d0, d0
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%1 = call double @llvm.sqrt.f64(double %a)
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ret double %1
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}
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declare double @llvm.powi.f64(double %Val, i32 %power)
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define double @powi_d(double %a, i32 %b) {
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; CHECK-LABEL: powi_d:
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; SOFT: {{(bl|b)}} __powidf2
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; HARD: b __powidf2
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%1 = call double @llvm.powi.f64(double %a, i32 %b)
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ret double %1
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}
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declare double @llvm.sin.f64(double %Val)
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define double @sin_d(double %a) {
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; CHECK-LABEL: sin_d:
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; SOFT: {{(bl|b)}} sin
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; HARD: b sin
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%1 = call double @llvm.sin.f64(double %a)
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ret double %1
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}
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declare double @llvm.cos.f64(double %Val)
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define double @cos_d(double %a) {
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; CHECK-LABEL: cos_d:
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; SOFT: {{(bl|b)}} cos
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; HARD: b cos
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%1 = call double @llvm.cos.f64(double %a)
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ret double %1
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}
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declare double @llvm.pow.f64(double %Val, double %power)
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define double @pow_d(double %a, double %b) {
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; CHECK-LABEL: pow_d:
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; SOFT: {{(bl|b)}} pow
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; HARD: b pow
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%1 = call double @llvm.pow.f64(double %a, double %b)
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ret double %1
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}
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declare double @llvm.exp.f64(double %Val)
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define double @exp_d(double %a) {
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; CHECK-LABEL: exp_d:
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; SOFT: {{(bl|b)}} exp
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; HARD: b exp
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%1 = call double @llvm.exp.f64(double %a)
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ret double %1
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}
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declare double @llvm.exp2.f64(double %Val)
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define double @exp2_d(double %a) {
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; CHECK-LABEL: exp2_d:
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; SOFT: {{(bl|b)}} exp2
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; HARD: b exp2
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%1 = call double @llvm.exp2.f64(double %a)
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ret double %1
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}
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declare double @llvm.log.f64(double %Val)
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define double @log_d(double %a) {
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; CHECK-LABEL: log_d:
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; SOFT: {{(bl|b)}} log
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; HARD: b log
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%1 = call double @llvm.log.f64(double %a)
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ret double %1
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}
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declare double @llvm.log10.f64(double %Val)
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define double @log10_d(double %a) {
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; CHECK-LABEL: log10_d:
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; SOFT: {{(bl|b)}} log10
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; HARD: b log10
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%1 = call double @llvm.log10.f64(double %a)
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ret double %1
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}
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declare double @llvm.log2.f64(double %Val)
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define double @log2_d(double %a) {
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; CHECK-LABEL: log2_d:
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; SOFT: {{(bl|b)}} log2
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; HARD: b log2
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%1 = call double @llvm.log2.f64(double %a)
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ret double %1
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}
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declare double @llvm.fma.f64(double %a, double %b, double %c)
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define double @fma_d(double %a, double %b, double %c) {
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; CHECK-LABEL: fma_d:
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; SOFT: {{(bl|b)}} fma
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; HARD: vfma.f64
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%1 = call double @llvm.fma.f64(double %a, double %b, double %c)
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ret double %1
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}
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; FIXME: the FPv4-SP version is less efficient than the no-FPU version
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declare double @llvm.fabs.f64(double %Val)
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define double @abs_d(double %a) {
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; CHECK-LABEL: abs_d:
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; NONE: bic r1, r1, #-2147483648
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; SP: bl __aeabi_dcmpgt
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; SP: bl __aeabi_dcmpun
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; SP: bl __aeabi_dsub
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; DP: vabs.f64 d0, d0
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%1 = call double @llvm.fabs.f64(double %a)
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ret double %1
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}
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declare double @llvm.copysign.f64(double %Mag, double %Sgn)
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define double @copysign_d(double %a, double %b) {
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; CHECK-LABEL: copysign_d:
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; SOFT: lsrs [[REG:r[0-9]+]], r3, #31
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; SOFT: bfi r1, [[REG]], #31, #1
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; HARD: vmov.i32 [[REG:d[0-9]+]], #0x80000000
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; HARD: vshl.i64 [[REG]], [[REG]], #32
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; HARD: vbsl [[REG]], d
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%1 = call double @llvm.copysign.f64(double %a, double %b)
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ret double %1
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}
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declare double @llvm.floor.f64(double %Val)
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define double @floor_d(double %a) {
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; CHECK-LABEL: floor_d:
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; SOFT: {{(bl|b)}} floor
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; HARD: b floor
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%1 = call double @llvm.floor.f64(double %a)
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ret double %1
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}
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declare double @llvm.ceil.f64(double %Val)
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define double @ceil_d(double %a) {
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; CHECK-LABEL: ceil_d:
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; SOFT: {{(bl|b)}} ceil
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; HARD: b ceil
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%1 = call double @llvm.ceil.f64(double %a)
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ret double %1
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}
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declare double @llvm.trunc.f64(double %Val)
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define double @trunc_d(double %a) {
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; CHECK-LABEL: trunc_d:
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; SOFT: {{(bl|b)}} trunc
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; HARD: b trunc
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%1 = call double @llvm.trunc.f64(double %a)
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ret double %1
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}
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declare double @llvm.rint.f64(double %Val)
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define double @rint_d(double %a) {
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; CHECK-LABEL: rint_d:
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; SOFT: {{(bl|b)}} rint
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; HARD: b rint
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%1 = call double @llvm.rint.f64(double %a)
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ret double %1
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}
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declare double @llvm.nearbyint.f64(double %Val)
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define double @nearbyint_d(double %a) {
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; CHECK-LABEL: nearbyint_d:
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; SOFT: {{(bl|b)}} nearbyint
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; HARD: b nearbyint
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%1 = call double @llvm.nearbyint.f64(double %a)
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ret double %1
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}
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declare double @llvm.round.f64(double %Val)
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define double @round_d(double %a) {
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; CHECK-LABEL: round_d:
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; SOFT: {{(bl|b)}} round
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; HARD: b round
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%1 = call double @llvm.round.f64(double %a)
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ret double %1
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}
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declare double @llvm.fmuladd.f64(double %a, double %b, double %c)
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define double @fmuladd_d(double %a, double %b, double %c) {
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; CHECK-LABEL: fmuladd_d:
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; SOFT: bl __aeabi_dmul
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; SOFT: bl __aeabi_dadd
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; HARD: vmul.f64
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; HARD: vadd.f64
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%1 = call double @llvm.fmuladd.f64(double %a, double %b, double %c)
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ret double %1
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}
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declare i16 @llvm.convert.to.fp16.f64(double %a)
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define i16 @d_to_h(double %a) {
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; CHECK-LABEL: d_to_h:
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; SOFT: bl __aeabi_d2h
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; HARD: bl __aeabi_d2h
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%1 = call i16 @llvm.convert.to.fp16.f64(double %a)
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ret i16 %1
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}
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declare double @llvm.convert.from.fp16.f64(i16 %a)
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define double @h_to_d(i16 %a) {
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; CHECK-LABEL: h_to_d:
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; NONE: bl __gnu_h2f_ieee
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; NONE: bl __aeabi_f2d
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; SP: vcvtb.f32.f16
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; SP: bl __aeabi_f2d
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; DP: vcvtb.f32.f16
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; DP: vcvt.f64.f32
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%1 = call double @llvm.convert.from.fp16.f64(i16 %a)
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ret double %1
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}
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