r300g: add a new debug option which disables compiler optimizations

Those are:
- dead-code elimination
- constant folding
- peephole (mainly copy propagation)
- register allocation

There are some bugs which I need to track down.

Also fix up the descriptions of all the debug options.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_blit.c b/src/mesa/drivers/dri/r300/r300_blit.c
index e43f0eeb88..5f261e07e6 100644
--- a/src/mesa/drivers/dri/r300/r300_blit.c
+++ b/src/mesa/drivers/dri/r300/r300_blit.c
@@ -89,6 +89,7 @@ static void create_vertex_program(struct r300_context *r300)
     compiler.SetHwInputOutput = vp_ins_outs;
     compiler.code = &r300->blit.vp_code;
     compiler.Base.is_r500 = r300->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515;
+    compiler.Base.disable_optimizations = 0;
     compiler.Base.has_half_swizzles = 0;
     compiler.Base.max_temp_regs = 32;
     compiler.Base.max_constants = 256;
@@ -124,6 +125,7 @@ static void create_fragment_program(struct r300_context *r300)
     compiler.OutputDepth = FRAG_RESULT_DEPTH;
     compiler.enable_shadow_ambient = GL_TRUE;
     compiler.Base.is_r500 = (r300->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515);
+    compiler.Base.disable_optimizations = 0;
     compiler.Base.has_half_swizzles = 1;
     compiler.Base.max_temp_regs = (compiler.Base.is_r500) ? 128 : 32;
     compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32;