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authorFrancisco Jerez <[email protected]>2016-05-17 16:01:29 -0700
committerFrancisco Jerez <[email protected]>2016-05-27 23:19:22 -0700
commit122e0315480704a7c6777b994c42448d360e6774 (patch)
tree513e6dedf72d521495214da7d1f6dc54696f9d62 /src/mesa/drivers
parent98c8bef01cae5fd70dda22fd7ac0b5694c4dfb5f (diff)
i965/fs: Assert that IF instruction with embedded compare has legal exec_size.
We shouldn't encounter these right now but if we did it wouldn't be possible for the SIMD lowering pass to split it into multiple instructions because of its side effects on control flow, so just assert in order to kill the program. Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 2b6cf221f4c..df72fda49c2 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -4788,6 +4788,10 @@ get_lowered_simd_width(const struct brw_device_info *devinfo,
return MIN2(devinfo->is_haswell ? 8 : ~0u,
get_fpu_lowered_simd_width(devinfo, inst));
+ case BRW_OPCODE_IF:
+ assert(inst->src[0].file == BAD_FILE || inst->exec_size <= 16);
+ return inst->exec_size;
+
case SHADER_OPCODE_RCP:
case SHADER_OPCODE_RSQ:
case SHADER_OPCODE_SQRT: