diff options
Diffstat (limited to 'amd64/isel.c')
| -rw-r--r-- | amd64/isel.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/amd64/isel.c b/amd64/isel.c index 2273c99..b0cacea 100644 --- a/amd64/isel.c +++ b/amd64/isel.c @@ -224,6 +224,7 @@ static void sel(struct function *fn, struct instr *ins, struct block *blk, int *curi) { uint siz, alignlog2; + int t; struct instr temp = {0}; enum op op = ins->op; @@ -290,6 +291,10 @@ sel(struct function *fn, struct instr *ins, struct block *blk, int *curi) *ins = mkinstr(Ocopy, ins->cls, mkref(RREG, op < Orem ? RAX : RDX)); /* get output */ temp = mkinstr(Ocopy, ins->cls, mkref(RREG, op < Orem ? RDX : RAX)); /* clobber other reg*/ insertinstr(blk, ++(*curi), temp); + /* swap instrs so that clobber goes first */ + t = blk->ins.p[*curi - 1]; + blk->ins.p[*curi - 1] = blk->ins.p[*curi - 0]; + blk->ins.p[*curi - 0] = t; break; case Osub: if (ins->r.bits == mkref(RICON, 1).bits) { |