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authorJosé Fonseca <jfonseca@vmware.com>2010-05-17 15:22:48 +0100
committerJosé Fonseca <jfonseca@vmware.com>2010-05-17 15:22:48 +0100
commit32a7209c0a0d5ae63f12056ed969087d942c6298 (patch)
tree0e85555120ac821e0e9a7246e1d01a5fde6e109c /src
parent0b7ca2f8fcb187fb3aa37e0b6dc4b0a84101478f (diff)
gallivm: Tweak ret_mask handling.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c39
1 files changed, 15 insertions, 24 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 44bc2bff78..d6e1c478be 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -107,6 +107,7 @@ struct lp_exec_mask {
} loop_stack[LP_MAX_TGSI_NESTING];
int loop_stack_size;
+ LLVMValueRef ret_mask;
struct {
int pc;
LLVMValueRef ret_mask;
@@ -180,7 +181,7 @@ static void lp_exec_mask_init(struct lp_exec_mask *mask, struct lp_build_context
mask->call_stack_size = 0;
mask->int_vec_type = lp_build_int_vec_type(mask->bld->type);
- mask->break_mask = mask->cont_mask = mask->cond_mask =
+ mask->exec_mask = mask->ret_mask = mask->break_mask = mask->cont_mask = mask->cond_mask =
LLVMConstAllOnes(mask->int_vec_type);
}
@@ -201,15 +202,12 @@ static void lp_exec_mask_update(struct lp_exec_mask *mask)
} else
mask->exec_mask = mask->cond_mask;
- /*if (mask->call_stack_size) {
- LLVMValueRef ret_mask =
- mask->call_stack[mask->call_stack_size - 1].ret_mask;
+ if (mask->call_stack_size) {
mask->exec_mask = LLVMBuildAnd(mask->bld->builder,
mask->exec_mask,
- ret_mask,
+ mask->ret_mask,
"callmask");
- }*/
-
+ }
mask->has_mask = (mask->cond_stack_size > 0 ||
mask->loop_stack_size > 0 ||
@@ -375,12 +373,6 @@ static void lp_exec_mask_store(struct lp_exec_mask *mask,
} else {
pred = mask->exec_mask;
}
- if (mask->call_stack_size) {
- pred = LLVMBuildAnd(mask->bld->builder, pred,
- mask->call_stack[
- mask->call_stack_size - 1].ret_mask,
- "");
- }
}
if (pred) {
@@ -400,16 +392,17 @@ static void lp_exec_mask_call(struct lp_exec_mask *mask,
int func,
int *pc)
{
+ assert(mask->call_stack_size < LP_MAX_TGSI_NESTING);
mask->call_stack[mask->call_stack_size].pc = *pc;
- mask->call_stack[mask->call_stack_size].ret_mask =
- LLVMConstAllOnes(mask->int_vec_type);
+ mask->call_stack[mask->call_stack_size].ret_mask = mask->ret_mask;
+ mask->call_stack_size++;
*pc = func;
}
static void lp_exec_mask_ret(struct lp_exec_mask *mask, int *pc)
{
LLVMValueRef exec_mask;
- LLVMValueRef ret_mask;
+
if (mask->call_stack_size == 0) {
/* returning from main() */
*pc = -1;
@@ -419,26 +412,24 @@ static void lp_exec_mask_ret(struct lp_exec_mask *mask, int *pc)
mask->exec_mask,
"ret");
- ret_mask = mask->call_stack[
- mask->call_stack_size - 1].ret_mask;
- ret_mask = LLVMBuildAnd(mask->bld->builder,
- ret_mask,
- exec_mask, "ret_full");
-
- mask->call_stack[mask->call_stack_size - 1].ret_mask = ret_mask;
+ mask->ret_mask = LLVMBuildAnd(mask->bld->builder,
+ mask->ret_mask,
+ exec_mask, "ret_full");
lp_exec_mask_update(mask);
}
static void lp_exec_mask_bgnsub(struct lp_exec_mask *mask)
{
- mask->call_stack_size++;
}
static void lp_exec_mask_endsub(struct lp_exec_mask *mask, int *pc)
{
+ assert(mask->call_stack_size);
mask->call_stack_size--;
*pc = mask->call_stack[mask->call_stack_size].pc;
+ mask->ret_mask = mask->call_stack[mask->call_stack_size].ret_mask;
+ lp_exec_mask_update(mask);
}
static LLVMValueRef