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Utilizing fallthrough for most shader CF, hopefully speeding things up.

This commit is contained in:
Ben Vanik 2015-12-13 10:14:35 -08:00
parent b5469b57ba
commit 5db84105c4
1 changed files with 5 additions and 4 deletions
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9
src/xenia/gpu/glsl_shader_translator.cc
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@ -346,11 +346,8 @@ void GlslShaderTranslator::ProcessControlFlowInstructionBegin(
void GlslShaderTranslator::ProcessControlFlowInstructionEnd(uint32_t cf_index) { void GlslShaderTranslator::ProcessControlFlowInstructionEnd(uint32_t cf_index) {
if (!cf_wrote_pc_) { if (!cf_wrote_pc_) {
uint32_t next_index = cf_index + 1; EmitSourceDepth("// Falling through to L%u\n", cf_index + 1);
EmitSourceDepth("pc = 0x%X; // Fallthrough to L%d\n", next_index,
next_index);
} }
EmitSourceDepth("break;\n");
Unindent(); Unindent();
} }
@ -391,6 +388,7 @@ void GlslShaderTranslator::ProcessExecInstructionEnd(
EmitSourceDepth("}\n"); EmitSourceDepth("}\n");
if (instr.is_end) { if (instr.is_end) {
EmitSourceDepth("pc = 0xFFFF;\n"); EmitSourceDepth("pc = 0xFFFF;\n");
EmitSourceDepth("break;\n");
cf_wrote_pc_ = true; cf_wrote_pc_ = true;
} }
} }
@ -425,6 +423,7 @@ void GlslShaderTranslator::ProcessLoopStartInstruction(
EmitSourceDepth(" pc = 0x%X; // Fallthrough to loop body L%d\n", EmitSourceDepth(" pc = 0x%X; // Fallthrough to loop body L%d\n",
instr.dword_index + 1, instr.dword_index + 1); instr.dword_index + 1, instr.dword_index + 1);
EmitSourceDepth("}\n"); EmitSourceDepth("}\n");
EmitSourceDepth("break;\n");
cf_wrote_pc_ = true; cf_wrote_pc_ = true;
} }
@ -464,6 +463,7 @@ void GlslShaderTranslator::ProcessLoopEndInstruction(
Unindent(); Unindent();
EmitSourceDepth("}\n"); EmitSourceDepth("}\n");
EmitSourceDepth("break;\n");
cf_wrote_pc_ = true; cf_wrote_pc_ = true;
} }
@ -521,6 +521,7 @@ void GlslShaderTranslator::ProcessJumpInstruction(
} else { } else {
EmitSourceDepth("}\n"); EmitSourceDepth("}\n");
} }
EmitSourceDepth("break;\n");
} }
void GlslShaderTranslator::ProcessAllocInstruction( void GlslShaderTranslator::ProcessAllocInstruction(