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.cpp | |
| 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.cpp')
| -rw-r--r-- | src/glsl/ir.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp index 149ddbd5342..ead7456dfcc 100644 --- a/src/glsl/ir.cpp +++ b/src/glsl/ir.cpp @@ -398,6 +398,7 @@ ir_expression::ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1) this->type = glsl_type::uint_type; break; + case ir_binop_imul_high: case ir_binop_carry: case ir_binop_borrow: case ir_binop_lshift: @@ -529,6 +530,7 @@ static const char *const operator_strs[] = { "+", "-", "*", + "imul_high", "/", "carry", "borrow", |