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glsl: Don't consider unused FS out variables as being statically assigned.

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I only considered var->assigned for FragColor and FragData, but
ignored when it was false for out vars.  Fixes piglit
write-gl_FragColor-and-not-user-output.frag

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49068
This commit is contained in:
Eric Anholt
2012-04-23 16:10:12 -07:00
parent fcd57280ae
commit b2ee5a08ba
1 changed files with 3 additions and 3 deletions
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src/glsl/ast_to_hir.cpp
+3 -3
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@@ -4039,13 +4039,13 @@ detect_conflicting_assignments(struct _mesa_glsl_parse_state *state,
foreach_list(node, instructions) {
ir_variable *var = ((ir_instruction *)node)->as_variable();
if (!var)
if (!var || !var->assigned)
continue;
if (strcmp(var->name, "gl_FragColor") == 0)
gl_FragColor_assigned = var->assigned;
gl_FragColor_assigned = true;
else if (strcmp(var->name, "gl_FragData") == 0)
gl_FragData_assigned = var->assigned;
gl_FragData_assigned = true;
else if (strncmp(var->name, "gl_", 3) != 0) {
if (state->target == fragment_shader &&
(var->mode == ir_var_out || var->mode == ir_var_inout)) {