DrSocalkwe3n/luajit
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Remove obsolete non-truncating number to integer conversions.

Browse Source
This commit is contained in:
Mike Pall
2013-02-22 20:39:25 +01:00
parent fdc0ce8deb
commit b359ce804b
12 changed files with 31 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/lj_asm_x86.h
View File

@@ -726,9 +726,7 @@ static void asm_conv(ASMState *as, IRIns *ir)
asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
} else {
Reg dest = ra_dest(as, ir, RSET_GPR);
x86Op op = st == IRT_NUM ?
((ir->op2 & IRCONV_TRUNC) ? XO_CVTTSD2SI : XO_CVTSD2SI) :
((ir->op2 & IRCONV_TRUNC) ? XO_CVTTSS2SI : XO_CVTSS2SI);
x86Op op = st == IRT_NUM ? XO_CVTTSD2SI : XO_CVTTSS2SI;
if (LJ_64 ? irt_isu64(ir->t) : irt_isu32(ir->t)) {
/* LJ_64: For inputs >= 2^63 add -2^64, convert again. */
/* LJ_32: For inputs >= 2^31 add -2^31, convert again and add 2^31. */
@@ -850,7 +848,6 @@ static void asm_conv_int64_fp(ASMState *as, IRIns *ir)
Reg lo, hi;
lua_assert(st == IRT_NUM || st == IRT_FLOAT);
lua_assert(dt == IRT_I64 || dt == IRT_U64);
lua_assert(((ir-1)->op2 & IRCONV_TRUNC));
hi = ra_dest(as, ir, RSET_GPR);
lo = ra_dest(as, ir-1, rset_exclude(RSET_GPR, hi));
if (ra_used(ir-1)) emit_rmro(as, XO_MOV, lo, RID_ESP, 0);
@@ -1457,7 +1454,7 @@ static void asm_sload(ASMState *as, IRIns *ir)
lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
if ((ir->op2 & IRSLOAD_CONVERT)) {
t.irt = irt_isint(t) ? IRT_NUM : IRT_INT; /* Check for original type. */
emit_rmro(as, irt_isint(t) ? XO_CVTSI2SD : XO_CVTSD2SI, dest, base, ofs);
emit_rmro(as, irt_isint(t) ? XO_CVTSI2SD : XO_CVTTSD2SI, dest, base, ofs);
} else {
emit_rmro(as, irt_isnum(t) ? XO_MOVSD : XO_MOV, dest, base, ofs);
}