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intel: Don't propagate conditional modifiers if a UD source is negated

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This fixes a bug uncovered by my NIR integer division by constant
optimization series.

Fixes: 19f9cb72c8 "i965/fs: Add pass to propagate conditional..."
Fixes: 627f94b72e "i965/vec4: adding vec4_cmod_propagation..."
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Jason Ekstrand
2018-10-08 12:22:35 -05:00
parent 328d4d080b
commit 4ba445e011
5 changed files with 50 additions and 0 deletions
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src/intel/compiler/brw_ir_vec4.h
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@@ -291,6 +291,7 @@ public:
int swizzle, int swizzle_mask);
void reswizzle(int dst_writemask, int swizzle);
bool can_do_source_mods(const struct gen_device_info *devinfo);
bool can_do_cmod();
bool can_do_writemask(const struct gen_device_info *devinfo);
bool can_change_types() const;
bool has_source_and_destination_hazard() const;