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authorMatt Turner <[email protected]>2013-09-17 21:34:15 -0700
committerMatt Turner <[email protected]>2013-10-07 10:43:19 -0700
commit06e41a02a3564b00404dd3dd5d6f6b5897df36e9 (patch)
treec8addcab70dc2f20e65df76fd2570230ff5e64bd /src/glsl/ir_validate.cpp
parent69909c866b6595f80d206c8e2484b1dc6668e7be (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_validate.cpp')
-rw-r--r--src/glsl/ir_validate.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/glsl/ir_validate.cpp b/src/glsl/ir_validate.cpp
index 38db8c20677..d6abc8eb5a8 100644
--- a/src/glsl/ir_validate.cpp
+++ b/src/glsl/ir_validate.cpp
@@ -429,6 +429,12 @@ ir_validate::visit_leave(ir_expression *ir)
}
break;
+ case ir_binop_imul_high:
+ assert(ir->type == ir->operands[0]->type);
+ assert(ir->type == ir->operands[1]->type);
+ assert(ir->type->is_integer());
+ break;
+
case ir_binop_carry:
case ir_binop_borrow:
assert(ir->type == ir->operands[0]->type);