diff options
| author | Fredrik Höglund <[email protected]> | 2010-12-15 20:00:42 +0100 |
|---|---|---|
| committer | Jerome Glisse <[email protected]> | 2010-12-15 14:07:00 -0500 |
| commit | 66f55de31e15f97ad1d16c573756738218c02109 (patch) | |
| tree | 059bbb7e65987f1bfe91a604111500509fd192e6 | |
| parent | 3861a1001c5ad0dd0de3b0befabf3ed69da9dc5e (diff) | |
r600g: fix pow(0, 0) evaluating to NaN
We have to use the non-IEEE compliant version of MUL here, since
log2(0) is -inf, and 0 * -inf is NaN in IEEE arithmetic.
candidates for 7.10 branch
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index d6455023a3a..9c7b7f0a578 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -1451,7 +1451,7 @@ static int tgsi_pow(struct r600_shader_ctx *ctx) return r; /* b * LOG2(a) */ memset(&alu, 0, sizeof(struct r600_bc_alu)); - alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MUL_IEEE); + alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MUL); r = tgsi_src(ctx, &inst->Src[1], &alu.src[0]); if (r) return r; |