diff options
| author | Matt Turner <[email protected]> | 2013-09-17 21:34:15 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2013-10-07 10:43:19 -0700 |
| commit | 06e41a02a3564b00404dd3dd5d6f6b5897df36e9 (patch) | |
| tree | c8addcab70dc2f20e65df76fd2570230ff5e64bd /src/glsl/ir.h | |
| parent | 69909c866b6595f80d206c8e2484b1dc6668e7be (diff) | |
glsl: Implement [iu]mulExtended() built-ins for ARB_gpu_shader5.
These built-ins have two "out" parameters, which makes implementing them
efficiently with our current compiler infrastructure difficult. Instead,
implement them in terms of the existing ir_binop_mul IR (to return the
low 32-bits) and a new ir_binop_mul64 which returns the high 32-bits.
v2: Rename mul64 -> imul_high as suggested by Ken.
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 756ce9c7cd3..9fd5f5a997a 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -1091,7 +1091,8 @@ enum ir_expression_operation { ir_binop_add, ir_binop_sub, - ir_binop_mul, + ir_binop_mul, /**< Floating-point or low 32-bit integer multiply. */ + ir_binop_imul_high, /**< Calculates the high 32-bits of a 64-bit multiply. */ ir_binop_div, /** |