diff options
| -rw-r--r-- | src/glsl/nir/nir.c | 27 | ||||
| -rw-r--r-- | src/glsl/nir/nir.h | 2 |
2 files changed, 29 insertions, 0 deletions
diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c index b64ec4073a4..56891dc3401 100644 --- a/src/glsl/nir/nir.c +++ b/src/glsl/nir/nir.c @@ -1634,6 +1634,33 @@ nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state) return nir_foreach_dest(instr, visit_dest_indirect, &dest_state); } +bool +nir_srcs_equal(nir_src src1, nir_src src2) +{ + if (src1.is_ssa) { + if (src2.is_ssa) { + return src1.ssa == src2.ssa; + } else { + return false; + } + } else { + if (src2.is_ssa) { + return false; + } else { + if ((src1.reg.indirect == NULL) != (src2.reg.indirect == NULL)) + return false; + + if (src1.reg.indirect) { + if (!nir_srcs_equal(*src1.reg.indirect, *src2.reg.indirect)) + return false; + } + + return src1.reg.reg == src2.reg.reg && + src1.reg.base_offset == src2.reg.base_offset; + } + } +} + void nir_ssa_def_init(nir_function_impl *impl, nir_instr *instr, nir_ssa_def *def, unsigned num_components, const char *name) diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h index 6c1f6682843..126e9c841c7 100644 --- a/src/glsl/nir/nir.h +++ b/src/glsl/nir/nir.h @@ -1301,6 +1301,8 @@ typedef bool (*nir_foreach_src_cb)(nir_src *src, void *state); bool nir_foreach_dest(nir_instr *instr, nir_foreach_dest_cb cb, void *state); bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state); +bool nir_srcs_equal(nir_src src1, nir_src src2); + void nir_ssa_def_init(nir_function_impl *impl, nir_instr *instr, nir_ssa_def *def, unsigned num_components, const char *name); |