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tgsi/scan: add uses_doubles to tgsi scanner

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This allows drivers to work out if a shader contains any
double opcodes easily.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-02-20 10:40:46 +10:00
parent 3bfa345c1e
commit ee67fd70c2
2 changed files with 5 additions and 1 deletions
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4
src/gallium/auxiliary/tgsi/tgsi_scan.c
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@ -100,6 +100,10 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
info->opcode_count[fullinst->Instruction.Opcode]++;
if (fullinst->Instruction.Opcode >= TGSI_OPCODE_F2D &&
fullinst->Instruction.Opcode <= TGSI_OPCODE_DSSG)
info->uses_doubles = true;
for (i = 0; i < fullinst->Instruction.NumSrcRegs; i++) {
const struct tgsi_full_src_register *src =
&fullinst->Src[i];

2
src/gallium/auxiliary/tgsi/tgsi_scan.h
View file

@ -95,7 +95,7 @@ struct tgsi_shader_info
boolean writes_viewport_index;
boolean writes_layer;
boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
boolean uses_doubles; /**< uses any of the double instructions */
unsigned clipdist_writemask;
unsigned culldist_writemask;
unsigned num_written_culldistance;