diff options
| author | Zack Rusin <[email protected]> | 2013-04-10 15:25:18 -0700 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2013-04-16 23:38:46 -0700 |
| commit | 88db6f0a73cd988b14e95e5f506b4e5ac355f065 (patch) | |
| tree | d7362df706fc849127b4ff45a3e38603e54f16ea | |
| parent | b8f6858fcb762b47ca2ad30efd286bd203042f17 (diff) | |
tgsi/exec: fix the udiv and umod instructions
Same as with llvmpipe: we can't be divind/moding by zero and we
need to make sure that dividing/moding by zero produces 0xffffffff.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 05f749ed6c1..3de15730e75 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -3445,10 +3445,10 @@ micro_udiv(union tgsi_exec_channel *dst, const union tgsi_exec_channel *src0, const union tgsi_exec_channel *src1) { - dst->u[0] = src0->u[0] / src1->u[0]; - dst->u[1] = src0->u[1] / src1->u[1]; - dst->u[2] = src0->u[2] / src1->u[2]; - dst->u[3] = src0->u[3] / src1->u[3]; + dst->u[0] = src1->u[0] ? src0->u[0] / src1->u[0] : ~0u; + dst->u[1] = src1->u[1] ? src0->u[1] / src1->u[1] : ~0u; + dst->u[2] = src1->u[2] ? src0->u[2] / src1->u[2] : ~0u; + dst->u[3] = src1->u[3] ? src0->u[3] / src1->u[3] : ~0u; } static void @@ -3490,10 +3490,10 @@ micro_umod(union tgsi_exec_channel *dst, const union tgsi_exec_channel *src0, const union tgsi_exec_channel *src1) { - dst->u[0] = src0->u[0] % src1->u[0]; - dst->u[1] = src0->u[1] % src1->u[1]; - dst->u[2] = src0->u[2] % src1->u[2]; - dst->u[3] = src0->u[3] % src1->u[3]; + dst->u[0] = src1->u[0] ? src0->u[0] % src1->u[0] : ~0u; + dst->u[1] = src1->u[1] ? src0->u[1] % src1->u[1] : ~0u; + dst->u[2] = src1->u[2] ? src0->u[2] % src1->u[2] : ~0u; + dst->u[3] = src1->u[3] ? src0->u[3] % src1->u[3] : ~0u; } static void |