diff options
| author | Jason Ekstrand <jason.ekstrand@intel.com> | 2014-10-29 16:25:51 -0700 |
|---|---|---|
| committer | Jason Ekstrand <jason.ekstrand@intel.com> | 2015-01-15 07:19:00 -0800 |
| commit | d7e482d32cf0188a1ed49e76f008837be5cfd720 (patch) | |
| tree | 930b26ec87e89af39d2894f81758a07e20dd6e41 /src/glsl/nir/nir.h | |
| parent | dfdf0c46732dd20b5796778dc446fb0a34649f1e (diff) | |
nir: Add a function to detect if a block is immediately followed by an if
Since we don't actually have an "if" instruction, this is a very common
pattern when iterating over instructions. This adds a helper function for
it to make things a little less painful.
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Diffstat (limited to 'src/glsl/nir/nir.h')
| -rw-r--r-- | src/glsl/nir/nir.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h index 2ea7542d31..84be1d65f0 100644 --- a/src/glsl/nir/nir.h +++ b/src/glsl/nir/nir.h @@ -1277,6 +1277,11 @@ bool nir_foreach_block(nir_function_impl *impl, nir_foreach_block_cb cb, bool nir_foreach_block_reverse(nir_function_impl *impl, nir_foreach_block_cb cb, void *state); +/* If the following CF node is an if, this function returns that if. + * Otherwise, it returns NULL. + */ +nir_if *nir_block_following_if(nir_block *block); + void nir_index_local_regs(nir_function_impl *impl); void nir_index_global_regs(nir_shader *shader); void nir_index_ssa_defs(nir_function_impl *impl); |