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shader: Move loop safety tests to code emission

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This commit is contained in:
ReinUsesLisp 2021-06-21 01:07:10 -03:00 • committed by ameerj
parent 3877918e96
commit 808ef97a08
16 changed files with 54 additions and 108 deletions
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2
src/shader_recompiler/backend/glsl/emit_context.h
View file

@ -153,6 +153,8 @@ public:
std::vector<TextureImageDefinition> images;
std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};
u32 num_safety_loop_vars{};
bool uses_y_direction{};
bool uses_cc_carry{};

11
src/shader_recompiler/backend/glsl/emit_glsl.cpp
View file

@ -6,6 +6,7 @@
#include <string>
#include "common/alignment.h"
#include "common/settings.h"
#include "shader_recompiler/backend/glsl/emit_context.h"
#include "shader_recompiler/backend/glsl/emit_glsl.h"
#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
@ -156,7 +157,12 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
ctx.Add("for(;;){{");
break;
case IR::AbstractSyntaxNode::Type::Repeat:
ctx.Add("if(!{}){{break;}}}}", ctx.var_alloc.Consume(node.data.repeat.cond));
if (Settings::values.disable_shader_loop_safety_checks) {
ctx.Add("if(!{}){{break;}}}}", ctx.var_alloc.Consume(node.data.repeat.cond));
} else {
ctx.Add("if(--loop{}<0 || !{}){{break;}}}}", ctx.num_safety_loop_vars++,
ctx.var_alloc.Consume(node.data.repeat.cond));
}
break;
default:
throw NotImplementedException("AbstractSyntaxNode Type {}", node.type);
@ -198,6 +204,9 @@ void DefineVariables(const EmitContext& ctx, std::string& header) {
ctx.var_alloc.Representation(index, type), type_name);
}
}
for (u32 i = 0; i < ctx.num_safety_loop_vars; ++i) {
header += fmt::format("int loop{}=0x2000;", i);
}
}
} // Anonymous namespace

2
src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
View file

@ -44,8 +44,6 @@ void EmitSetGotoVariable(EmitContext& ctx);
void EmitGetGotoVariable(EmitContext& ctx);
void EmitSetIndirectBranchVariable(EmitContext& ctx);
void EmitGetIndirectBranchVariable(EmitContext& ctx);
void EmitSetLoopSafetyVariable(EmitContext& ctx);
void EmitGetLoopSafetyVariable(EmitContext& ctx);
void EmitGetCbufU8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset);
void EmitGetCbufS8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,

8
src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp
View file

@ -46,14 +46,6 @@ void EmitGetIndirectBranchVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitSetLoopSafetyVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetLoopSafetyVariable(EmitContext& ctx) {
NotImplemented();
}
void EmitGetZFlag(EmitContext& ctx) {
NotImplemented();
}