Mesa (gallium-0.1): tgsi: Move stack assertions to bottom of tgsi_exec_machine_run.

[Jose Fonseca]

Module: Mesa
Branch: gallium-0.1
Commit: 756021d3798c087c99e513b03e03069ca7a7a43f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=756021d3798c087c99e513b03e03069ca7a7a43f

Author: José Fonseca <jfonseca at vmware.com>
Date:   Tue Sep  8 16:34:43 2009 +0100

tgsi: Move stack assertions to bottom of tgsi_exec_machine_run.

To detect the failures while still processing the shader in question.

---

 src/gallium/auxiliary/tgsi/tgsi_exec.c |   14 +++++++++-----
 1 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 3ba1a66..466b6ce 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -2999,11 +2999,10 @@ tgsi_exec_machine_run( struct tgsi_exec_machine *mach )
    mach->FuncMask = 0xf;
    mach->ExecMask = 0xf;
 
-   mach->CondStackTop = 0; /* temporarily subvert this assertion */
-   assert(mach->CondStackTop == 0);
-   assert(mach->LoopStackTop == 0);
-   assert(mach->ContStackTop == 0);
-   assert(mach->CallStackTop == 0);
+   mach->CondStackTop = 0;
+   mach->LoopStackTop = 0;
+   mach->ContStackTop = 0;
+   mach->CallStackTop = 0;
 
    mach->Temps[TEMP_KILMASK_I].xyzw[TEMP_KILMASK_C].u[0] = 0;
    mach->Temps[TEMP_OUTPUT_I].xyzw[TEMP_OUTPUT_C].u[0] = 0;
@@ -3032,6 +3031,11 @@ tgsi_exec_machine_run( struct tgsi_exec_machine *mach )
       exec_instruction( mach, mach->Instructions + pc, &pc );
    }
 
+   assert(mach->CondStackTop == 0);
+   assert(mach->LoopStackTop == 0);
+   assert(mach->ContStackTop == 0);
+   assert(mach->CallStackTop == 0);
+   
 #if 0
    /* we scale from floats in [0,1] to Zbuffer ints in sp_quad_depth_test.c */
    if (mach->Processor == TGSI_PROCESSOR_FRAGMENT) {