diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_flow.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_flow.c b/src/gallium/drivers/llvmpipe/lp_bld_flow.c index fe9c6941f74..22b4310f061 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_flow.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_flow.c @@ -145,6 +145,10 @@ lp_build_flow_destroy(struct lp_build_flow_context *flow) } +/** + * Begin/push a new flow control construct, such as a loop, skip block + * or variable scope. + */ static union lp_build_flow_construct_data * lp_build_flow_push(struct lp_build_flow_context *flow, enum lp_build_flow_construct_kind kind) @@ -158,6 +162,10 @@ lp_build_flow_push(struct lp_build_flow_context *flow, } +/** + * Return the current/top flow control construct on the stack. + * \param kind the expected type of the top-most construct + */ static union lp_build_flow_construct_data * lp_build_flow_peek(struct lp_build_flow_context *flow, enum lp_build_flow_construct_kind kind) @@ -174,6 +182,10 @@ lp_build_flow_peek(struct lp_build_flow_context *flow, } +/** + * End/pop the current/top flow control construct on the stack. + * \param kind the expected type of the top-most construct + */ static union lp_build_flow_construct_data * lp_build_flow_pop(struct lp_build_flow_context *flow, enum lp_build_flow_construct_kind kind) @@ -213,11 +225,11 @@ lp_build_flow_scope_begin(struct lp_build_flow_context *flow) * * A variable is a named entity which can have different LLVMValueRef's at * different points of the program. This is relevant for control flow because - * when there are mutiple branches to a same location we need to replace + * when there are multiple branches to a same location we need to replace * the variable's value with a Phi function as explained in * http://en.wikipedia.org/wiki/Static_single_assignment_form . * - * We keep track of variables by keeping around a pointer to where their + * We keep track of variables by keeping around a pointer to where they're * current. * * There are a few cautions to observe: @@ -386,6 +398,9 @@ lp_build_flow_skip_end(struct lp_build_flow_context *flow) } +/** + * Check if the mask predicate is zero. If so, jump to the end of the block. + */ static void lp_build_mask_check(struct lp_build_mask_context *mask) { |