---
Strangely, the suggested implementations of double-precision sqrt/rcp
in the BSpec show using a math instruction with an "eo" conditional
modifier. I have no idea what that could possibly mean, or how it could
work since conditional mod shares the same four bits with math SFID.
src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 2 ++
src/mesa/drivers/dri/i965/brw_vec4_generator.cpp | 2 ++
2 files changed, 4 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index ab5d223..4af9cbe 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -1817,6 +1817,7 @@ fs_generator::generate_code(const cfg_t *cfg, int
dispatch_width)
case SHADER_OPCODE_SIN:
case SHADER_OPCODE_COS:
assert(brw->gen < 6 || inst->mlen == 0);
+ assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
if (brw->gen >= 7) {
gen6_math(p, dst, brw_math_function(inst->opcode), src[0],
brw_null_reg());
@@ -1832,6 +1833,7 @@ fs_generator::generate_code(const cfg_t *cfg, int
dispatch_width)
case SHADER_OPCODE_INT_REMAINDER:
case SHADER_OPCODE_POW:
assert(brw->gen < 6 || inst->mlen == 0);
+ assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
if (brw->gen >= 7 && inst->opcode == SHADER_OPCODE_POW) {
gen6_math(p, dst, brw_math_function(inst->opcode), src[0], src[1]);
} else if (brw->gen >= 6) {
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
index 0776a91..d027fda 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
@@ -1361,6 +1361,7 @@ vec4_generator::generate_code(const cfg_t *cfg)
case SHADER_OPCODE_LOG2:
case SHADER_OPCODE_SIN:
case SHADER_OPCODE_COS:
+ assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
if (brw->gen >= 7) {
gen6_math(p, dst, brw_math_function(inst->opcode), src[0],
brw_null_reg());
@@ -1374,6 +1375,7 @@ vec4_generator::generate_code(const cfg_t *cfg)
case SHADER_OPCODE_POW:
case SHADER_OPCODE_INT_QUOTIENT:
case SHADER_OPCODE_INT_REMAINDER:
+ assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
if (brw->gen >= 7) {
gen6_math(p, dst, brw_math_function(inst->opcode), src[0], src[1]);
} else if (brw->gen == 6) {
--
2.0.4
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