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llvmpipe: improve based on review from Jose and fix else clauses

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else was broken in the outter most else statemants, plus the code
didn't need an inverted mask to compute the inverse of the current
condition.
This commit is contained in:
Zack Rusin 2010-03-02 10:18:29 -05:00
parent 0c616da241
commit faf8215bae
1 changed files with 9 additions and 8 deletions
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17
src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
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@ -96,8 +96,6 @@ struct lp_exec_mask {
LLVMValueRef cond_mask;
LLVMValueRef exec_mask;
LLVMValueRef inv_mask;
};
struct lp_build_tgsi_soa_context
@ -149,9 +147,6 @@ static void lp_exec_mask_init(struct lp_exec_mask *mask, struct lp_build_context
mask->cond_stack_size = 0;
mask->int_vec_type = lp_build_int_vec_type(mask->bld->type);
mask->inv_mask =
LLVMConstSub(LLVMConstNull(mask->int_vec_type),
LLVMConstAllOnes(mask->int_vec_type));
}
static void lp_exec_mask_update(struct lp_exec_mask *mask)
@ -174,9 +169,15 @@ static void lp_exec_mask_cond_push(struct lp_exec_mask *mask,
static void lp_exec_mask_cond_invert(struct lp_exec_mask *mask)
{
LLVMValueRef prev_mask = mask->cond_stack[mask->cond_stack_size - 1];
LLVMValueRef inv_mask = LLVMBuildXor(mask->bld->builder,
mask->cond_mask,
mask->inv_mask, "");
LLVMValueRef inv_mask = LLVMBuildNot(mask->bld->builder,
mask->cond_mask, "");
/* means that we didn't have any mask before and that
* we were fully enabled */
if (mask->cond_stack_size <= 1) {
prev_mask = LLVMConstAllOnes(mask->int_vec_type);
}
mask->cond_mask = LLVMBuildAnd(mask->bld->builder,
inv_mask,
prev_mask, "");