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glsl: support unsigned increment in ir_loop controls

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Current version can create ir_expression where operands have
different base type, patch adds support for unsigned type.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
https://bugs.freedesktop.org/show_bug.cgi?id=80880
This commit is contained in:
Tapani Pälli 2014-07-30 13:02:52 +03:00
parent 787bac3808
commit 151fb1e808
1 changed files with 14 additions and 3 deletions
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17
src/glsl/loop_controls.cpp
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@ -123,9 +123,20 @@ calculate_iterations(ir_rvalue *from, ir_rvalue *to, ir_rvalue *increment,
bool valid_loop = false;
for (unsigned i = 0; i < Elements(bias); i++) {
iter = (increment->type->is_integer())
? new(mem_ctx) ir_constant(iter_value + bias[i])
: new(mem_ctx) ir_constant(float(iter_value + bias[i]));
/* Increment may be of type int, uint or float. */
switch (increment->type->base_type) {
case GLSL_TYPE_INT:
iter = new(mem_ctx) ir_constant(iter_value + bias[i]);
break;
case GLSL_TYPE_UINT:
iter = new(mem_ctx) ir_constant(unsigned(iter_value + bias[i]));
break;
case GLSL_TYPE_FLOAT:
iter = new(mem_ctx) ir_constant(float(iter_value + bias[i]));
break;
default:
unreachable(!"Unsupported type for loop iterator.");
}
ir_expression *const mul =
new(mem_ctx) ir_expression(ir_binop_mul, increment->type, iter,