diff options
| author | rconde <[email protected]> | 2014-09-17 18:30:23 +0200 |
|---|---|---|
| committer | Roland Scheidegger <[email protected]> | 2014-09-17 18:31:54 +0200 |
| commit | ffeb77c7b0552a8624e46e65d6347240ac5ae84d (patch) | |
| tree | 38ab1f9fe23e1310e018d7cc36ce7b84872cd31c /src/gallium/auxiliary/tgsi/tgsi_exec.c | |
| parent | 4d996877ca8495dd9c683fd89f90c445781faf3b (diff) | |
gallivm,tgsi: fix idiv by zero crash
While the result of signed integer division by zero is undefined by glsl
(and doesn't exist with d3d10), we must not crash, so need to make sure we
don't get sigfpe much like udiv already does.
Unlike udiv where we return 0xffffffff (as required by d3d10) there is
no requirement right now to return anything specific so we use zero.
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_exec.c')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 6dae3798a39..77948011ac7 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -3343,10 +3343,10 @@ micro_idiv(union tgsi_exec_channel *dst, const union tgsi_exec_channel *src0, const union tgsi_exec_channel *src1) { - dst->i[0] = src0->i[0] / src1->i[0]; - dst->i[1] = src0->i[1] / src1->i[1]; - dst->i[2] = src0->i[2] / src1->i[2]; - dst->i[3] = src0->i[3] / src1->i[3]; + dst->i[0] = src1->i[0] ? src0->i[0] / src1->i[0] : 0; + dst->i[1] = src1->i[1] ? src0->i[1] / src1->i[1] : 0; + dst->i[2] = src1->i[2] ? src0->i[2] / src1->i[2] : 0; + dst->i[3] = src1->i[3] ? src0->i[3] / src1->i[3] : 0; } static void |