diff options
Diffstat (limited to 'lisc/isel.c')
| -rw-r--r-- | lisc/isel.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/lisc/isel.c b/lisc/isel.c index 494f9ac..c6d9d65 100644 --- a/lisc/isel.c +++ b/lisc/isel.c @@ -159,20 +159,15 @@ sel(Ins i, ANum *an, Fn *fn) Emit: emiti(i); for (n=0; n<2; n++) { - /* load constants that do not fit in - * a 32bit signed integer into a - * long temporary + /* fuse memory loads into arithmetic + * operations when the sizes match */ r0 = i.arg[n]; - if (rtype(r0) == RCon && noimm(r0, fn)) { - curi->arg[n] = newtmp("isel", fn); - emit(OCopy, 1, curi->arg[n], r0, R); - } if (opdesc[i.op].nmem > n) if ((i0 = an[r0.val].i)) if (i0->op == OLoad+Tsw || i0->op == OLoad+Tl) { amatch(&a, i0->arg[0], an, fn, 1); - i.arg[n] = a.base; + curi->arg[n] = a.base; if (a.offset.type == CUndef) if (req(a.index, R)) continue; @@ -186,6 +181,17 @@ Emit: emit(x, 0, R, r1, a.index); } } + for (n=0; n<2; n++) { + /* load constants that do not fit in + * a 32bit signed integer into a + * long temporary + */ + r0 = i.arg[n]; + if (rtype(r0) == RCon && noimm(r0, fn)) { + curi->arg[n] = newtmp("isel", fn); + emit(OCopy, 1, curi->arg[n], r0, R); + } + } break; case OAlloc: case OAlloc+1: |