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feat(riscv): add MOV pseudo-instruction and RVC compressed encoding

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petrbalvin
2026-08-02 18:22:00 +02:00
parent eee7a6d4a4
commit 243b087116
8 changed files with 946 additions and 78 deletions
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testdata/fma_riscv64.s
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+12 -14
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@@ -4,21 +4,19 @@
#include "textflag.h"
// func fma(a, b, c float64) float64
// Computes a*b + c using fused multiply-add.
TEXT ·fma(SB), NOSPLIT, $0-32
FLD a+0(FP), FA0
FLD b+8(FP), FA1
FLD c+16(FP), FA2
FMADDD FA0, FA1, FA2, FA3
FSD FA3, ret+24(FP)
RET
FLD a+0(FP), F10
FLD b+8(FP), F11
FLD c+16(FP), F12
FMADDD F10, F11, F12, F13
FSD F13, ret+24(FP)
RET
// func fms(a, b, c float64) float64
// Computes a*b - c using fused multiply-subtract.
TEXT ·fms(SB), NOSPLIT, $0-32
FLD a+0(FP), FA0
FLD b+8(FP), FA1
FLD c+16(FP), FA2
FMSUBD FA0, FA1, FA2, FA3
FSD FA3, ret+24(FP)
RET
FLD a+0(FP), F10
FLD b+8(FP), F11
FLD c+16(FP), F12
FMSUBD F10, F11, F12, F13
FSD F13, ret+24(FP)
RET