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tgsi: fix incorrect tgsi_shader_info::num_tokens computation

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We were incrementing num_tokens in each loop iteration while parsing
the shader.  But each call to tgsi_parse_token() can consume more than
one token (and often does).  Instead, just call the tgsi_num_tokens()
function.

Luckily, this issue doesn't seem to effect any current users of this
field (llvmpipe just checks for <= 1, for example).

Reviewed-by: Neha Bhende<bhenden@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Brian Paul 2018-05-17 13:38:05 -06:00
parent fcba3934fc
commit 8fde9429c3
1 changed files with 1 additions and 2 deletions
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3
src/gallium/auxiliary/tgsi/tgsi_scan.c
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@ -836,13 +836,12 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
procType == PIPE_SHADER_TESS_EVAL || procType == PIPE_SHADER_TESS_EVAL ||
procType == PIPE_SHADER_COMPUTE); procType == PIPE_SHADER_COMPUTE);
info->processor = procType; info->processor = procType;
info->num_tokens = tgsi_num_tokens(parse.Tokens);
/** /**
** Loop over incoming program tokens/instructions ** Loop over incoming program tokens/instructions
*/ */
while (!tgsi_parse_end_of_tokens(&parse)) { while (!tgsi_parse_end_of_tokens(&parse)) {
info->num_tokens++;
tgsi_parse_token( &parse ); tgsi_parse_token( &parse );
switch( parse.FullToken.Token.Type ) { switch( parse.FullToken.Token.Type ) {