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glsl: Add "built-in" functions to do 64%64 => 64 modulus

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These functions are directly available in shaders.  A #define is added
to detect the presence.  This allows these functions to be tested using
piglit regardless of whether the driver uses them for lowering.  The
GLSL spec says that functions and macros beginning with __ are reserved
for use by the implementation... hey, that's us!

v2: Use function inlining.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Ian Romanick
2016-10-18 16:46:35 -07:00
parent 82c31f3eb9
commit 695b04f7eb
5 changed files with 508 additions and 0 deletions
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6
src/compiler/glsl/builtin_functions.h
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@@ -51,6 +51,12 @@ udiv64(void *mem_ctx, builtin_available_predicate avail);
ir_function_signature *
idiv64(void *mem_ctx, builtin_available_predicate avail);
ir_function_signature *
umod64(void *mem_ctx, builtin_available_predicate avail);
ir_function_signature *
imod64(void *mem_ctx, builtin_available_predicate avail);
ir_function_signature *
umul64(void *mem_ctx, builtin_available_predicate avail);