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authorMatt Turner <[email protected]>2017-06-22 12:20:18 -0700
committerMatt Turner <[email protected]>2017-07-20 16:56:49 -0700
commit742cc6118a8d76870c707667a945269122aa0f21 (patch)
treecd41e61559afc2139ec98325eb329a2e98ec9be1 /src/compiler
parentd4c9d6a3b2cef577454d9c911fc96d5f678d9955 (diff)
nir: Support lowering vote intrinsics
... trivially (as allowed by the spec!) by reusing the existing nir_opt_intrinsics code. Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/compiler')
-rw-r--r--src/compiler/nir/nir.h2
-rw-r--r--src/compiler/nir/nir_opt_intrinsics.c4
2 files changed, 4 insertions, 2 deletions
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 44a1d0887e3..c5e5358aaaa 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -1821,6 +1821,8 @@ typedef struct nir_shader_compiler_options {
bool lower_extract_byte;
bool lower_extract_word;
+ bool lower_vote_trivial;
+
/**
* Does the driver support real 32-bit integers? (Otherwise, integers
* are simulated by floats.)
diff --git a/src/compiler/nir/nir_opt_intrinsics.c b/src/compiler/nir/nir_opt_intrinsics.c
index 9055c98dd33..bdb46e9300b 100644
--- a/src/compiler/nir/nir_opt_intrinsics.c
+++ b/src/compiler/nir/nir_opt_intrinsics.c
@@ -48,7 +48,7 @@ opt_intrinsics_impl(nir_function_impl *impl)
case nir_intrinsic_vote_any:
case nir_intrinsic_vote_all: {
nir_const_value *val = nir_src_as_const_value(intrin->src[0]);
- if (!val)
+ if (!val && !b.shader->options->lower_vote_trivial)
continue;
replacement = nir_ssa_for_src(&b, intrin->src[0], 1);
@@ -56,7 +56,7 @@ opt_intrinsics_impl(nir_function_impl *impl)
}
case nir_intrinsic_vote_eq: {
nir_const_value *val = nir_src_as_const_value(intrin->src[0]);
- if (!val)
+ if (!val && !b.shader->options->lower_vote_trivial)
continue;
replacement = nir_imm_int(&b, NIR_TRUE);