diff options
| author | Christoph Bumiller <[email protected]> | 2009-11-26 17:03:00 +0100 |
|---|---|---|
| committer | Christoph Bumiller <[email protected]> | 2009-11-29 13:41:47 +0100 |
| commit | 3f471c7948425a9c8ae23a563e0e816954a7589a (patch) | |
| tree | aa6c71cedd176819acc28174c633a993caa6e488 /src/gallium/drivers/nv50/nv50_program.c | |
| parent | 287bdd8e75aa3b2c20f50de359711158981dfa09 (diff) | |
nv50: don't permanently negate src in emit_ddy
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_program.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 855079f2939..f93c864c2a2 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -1440,19 +1440,25 @@ emit_ddx(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src) static void emit_ddy(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src) { + struct nv50_reg *r = src; struct nv50_program_exec *e = exec(pc); assert(src->type == P_TEMP); - if (!(src->mod & NV50_MOD_NEG)) /* ! double negation */ - emit_neg(pc, src, src); + if (!(src->mod & NV50_MOD_NEG)) { /* ! double negation */ + r = alloc_temp(pc, NULL); + emit_neg(pc, r, src); + } e->inst[0] = 0xc0150000; e->inst[1] = 0x8a400000; set_long(pc, e); set_dst(pc, dst, e); - set_src_0(pc, src, e); - set_src_2(pc, src, e); + set_src_0(pc, r, e); + set_src_2(pc, r, e); + + if (r != src) + free_temp(pc, r); emit(pc, e); } |