glsl: Fix handling of OPCODE_PRINT for no registers case.

[mesa.git] / src / mesa / shader / prog_execute.c

diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index 37750cc330aa42e75c6529ab7d34311f3b1e6c10..0067512cfb2f220191ddf654c6e14ca1bad861a0 100644 (file)
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -1767,7 +1767,7 @@ _mesa_execute_program(GLcontext * ctx,
          break;
       case OPCODE_PRINT:
          {
-            if (inst->SrcReg[0].File != -1) {
+            if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
                GLfloat a[4];
                fetch_vector4(&inst->SrcReg[0], machine, a);
                printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,