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authorliamwhite <liamwhite@users.noreply.github.com>2023-10-23 10:33:24 -0400
committerGitHub <noreply@github.com>2023-10-23 10:33:24 -0400
commitda5c49f22d5c8308aa751e7702e1b64e18b833da (patch)
tree80a920d7f29d5885744852670c607e50eabf9631 /src/shader_recompiler/backend
parent6b93b0b08cff8539699c49c41beecdcac5d9de36 (diff)
parentcfe73af6f220734faf32d1871f0da8a6a077dea6 (diff)
Merge pull request #11847 from ameerj/glsl-shfl-fix
emit_glsl_warp: Fix shfl_in_bounds conditional
Diffstat (limited to 'src/shader_recompiler/backend')
-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl.cpp1
-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp12
2 files changed, 9 insertions, 4 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl.cpp b/src/shader_recompiler/backend/glsl/emit_glsl.cpp
index d91e044460..66ecfc9f74 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl.cpp
@@ -242,6 +242,7 @@ std::string EmitGLSL(const Profile& profile, const RuntimeInfo& runtime_info, IR
}
if (program.info.uses_subgroup_shuffles) {
ctx.header += "bool shfl_in_bounds;";
+ ctx.header += "uint shfl_result;";
}
ctx.code.insert(0, ctx.header);
ctx.code += '}';
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
index 1245c9429f..f9be5de1c0 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
@@ -141,7 +141,8 @@ void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value,
const auto src_thread_id{fmt::format("({})|({})", lhs, min_thread_id)};
ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id);
SetInBoundsFlag(ctx, inst);
- ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value);
+ ctx.Add("shfl_result=readInvocationARB({},{});", value, src_thread_id);
+ ctx.AddU32("{}=shfl_in_bounds?shfl_result:{};", inst, value);
}
void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index,
@@ -158,7 +159,8 @@ void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std
const auto src_thread_id{fmt::format("({}-{})", THREAD_ID, index)};
ctx.Add("shfl_in_bounds=int({})>=int({});", src_thread_id, max_thread_id);
SetInBoundsFlag(ctx, inst);
- ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value);
+ ctx.Add("shfl_result=readInvocationARB({},{});", value, src_thread_id);
+ ctx.AddU32("{}=shfl_in_bounds?shfl_result:{};", inst, value);
}
void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value,
@@ -175,7 +177,8 @@ void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value,
const auto src_thread_id{fmt::format("({}+{})", THREAD_ID, index)};
ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id);
SetInBoundsFlag(ctx, inst);
- ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value);
+ ctx.Add("shfl_result=readInvocationARB({},{});", value, src_thread_id);
+ ctx.AddU32("{}=shfl_in_bounds?shfl_result:{};", inst, value);
}
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view value,
@@ -193,7 +196,8 @@ void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view val
const auto src_thread_id{fmt::format("({}^{})", THREAD_ID, index)};
ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id);
SetInBoundsFlag(ctx, inst);
- ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value);
+ ctx.Add("shfl_result=readInvocationARB({},{});", value, src_thread_id);
+ ctx.AddU32("{}=shfl_in_bounds?shfl_result:{};", inst, value);
}
void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, std::string_view op_b,