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freedreno/a3xx/compiler: use max_reg rather than file_count

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Our current (rather naive) register assignment is based on mapping
different register files (INPUT, OUTPUT, TEMP, CONST, etc) based on the
max register index of the preceding file.  But in some cases, the lowest
used register in a file might not be zero.  In which case
file_count[file] != file_max[file] + 1.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2013-08-20 13:54:01 -04:00
parent aee1ed708a
commit 2effac5a67
1 changed files with 7 additions and 7 deletions
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14
src/gallium/drivers/freedreno/a3xx/fd3_compiler.c
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@ -159,19 +159,19 @@ compile_init(struct fd3_compile_context *ctx, struct fd3_shader_stateobj *so,
/* Immediates go after constants: */
ctx->base_reg[TGSI_FILE_CONSTANT] = 0;
ctx->base_reg[TGSI_FILE_IMMEDIATE] =
ctx->info.file_count[TGSI_FILE_CONSTANT];
ctx->info.file_max[TGSI_FILE_CONSTANT] + 1;
/* Temporaries after outputs after inputs: */
ctx->base_reg[TGSI_FILE_INPUT] = 0;
ctx->base_reg[TGSI_FILE_OUTPUT] =
ctx->info.file_count[TGSI_FILE_INPUT];
ctx->info.file_max[TGSI_FILE_INPUT] + 1;
ctx->base_reg[TGSI_FILE_TEMPORARY] =
ctx->info.file_count[TGSI_FILE_INPUT] +
ctx->info.file_count[TGSI_FILE_OUTPUT];
ctx->info.file_max[TGSI_FILE_INPUT] + 1 +
ctx->info.file_max[TGSI_FILE_OUTPUT] + 1;
so->first_immediate = ctx->base_reg[TGSI_FILE_IMMEDIATE];
ctx->immediate_idx = 4 * (ctx->info.file_count[TGSI_FILE_CONSTANT] +
ctx->info.file_count[TGSI_FILE_IMMEDIATE]);
ctx->immediate_idx = 4 * (ctx->info.file_max[TGSI_FILE_CONSTANT] + 1 +
ctx->info.file_max[TGSI_FILE_IMMEDIATE] + 1);
ret = tgsi_parse_init(&ctx->parser, tokens);
if (ret != TGSI_PARSE_OK)
@ -309,7 +309,7 @@ get_internal_temp(struct fd3_compile_context *ctx,
/* assign next temporary: */
n = ctx->num_internal_temps++;
tmp_dst->Index = ctx->info.file_count[TGSI_FILE_TEMPORARY] + n;
tmp_dst->Index = ctx->info.file_max[TGSI_FILE_TEMPORARY] + n + 1;
src_from_dst(tmp_src, tmp_dst);
}