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pan/midgard: Add mir_ubo_shift helper

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Different UBO reads have different shift requirements.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-08-13 09:27:16 -07:00
parent cf3bb10f51
commit 03350eb8b8
2 changed files with 22 additions and 0 deletions
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1
src/panfrost/midgard/compiler.h
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@ -441,6 +441,7 @@ bool mir_special_index(compiler_context *ctx, unsigned idx);
unsigned mir_use_count(compiler_context *ctx, unsigned value);
bool mir_is_written_before(compiler_context *ctx, midgard_instruction *ins, unsigned node);
unsigned mir_mask_of_read_components(midgard_instruction *ins, unsigned node);
unsigned mir_ubo_shift(midgard_load_store_op op);
/* MIR printing */

21
src/panfrost/midgard/mir.c
View file

@ -425,3 +425,24 @@ mir_mask_of_read_components(midgard_instruction *ins, unsigned node)
return mask;
}
unsigned
mir_ubo_shift(midgard_load_store_op op)
{
switch (op) {
case midgard_op_ld_ubo_char:
return 0;
case midgard_op_ld_ubo_char2:
return 1;
case midgard_op_ld_ubo_char4:
return 2;
case midgard_op_ld_ubo_short4:
return 3;
case midgard_op_ld_ubo_int4:
return 4;
default:
unreachable("Invalid op");
}
}