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ARM64: Fuse FP multiply-add/sub.

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Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
This commit is contained in:
Mike Pall
2016-12-08 01:38:09 +01:00
parent bfeb1167cd
commit 2772cbc36e
2 changed files with 30 additions and 2 deletions
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5
src/lj_emit_arm64.h
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@@ -74,6 +74,11 @@ static uint32_t emit_isfpk64(uint64_t n)
/* -- Emit basic instructions --------------------------------------------- */
static void emit_dnma(ASMState *as, A64Ins ai, Reg rd, Reg rn, Reg rm, Reg ra)
{
*--as->mcp = ai | A64F_D(rd) | A64F_N(rn) | A64F_M(rm) | A64F_A(ra);
}
static void emit_dnm(ASMState *as, A64Ins ai, Reg rd, Reg rn, Reg rm)
{
*--as->mcp = ai | A64F_D(rd) | A64F_N(rn) | A64F_M(rm);