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finish preparations for coloring

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This commit is contained in:
ZhuangYumin
2024-10-21 06:08:16 +00:00
parent 1073750a8d
commit 11b9f31b7a
4 changed files with 113 additions and 20 deletions
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14
src/opt/regalloc.cpp
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@ -6,14 +6,6 @@
#include "phieliminate.h"
#include "tools.h"
// RISC-V calling convention compatible
static std::vector<std::string> held_tmp_regs = {"x28", "x29", "x30", "x31"};
static std::vector<std::string> callee_saved_regs = {"x3", "x4", "x9", "x18", "x19", "x20", "x21",
"x22", "x23", "x24", "x25", "x26", "x27"};
static std::vector<std::string> caller_saved_regs = {"x5", "x6", "x7", "x10", "x11", "x12",
"x13", "x14", "x15", "x16", "x17"};
static std::vector<std::string> arg_regs = {"x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17"};
static std::string zero = "x0", sp = "x2", ra = "x1", fp = "x8";
void EnforcePhysicalRegs(CFGType &cfg) {
using namespace opt;
// process callee side
@ -128,14 +120,16 @@ void EnforcePhysicalRegs(CFGType &cfg) {
}
}
void ConductRegAllocForFunction(std::shared_ptr<FunctionDefItem> func) {
std::cerr << "processing function " << func->func_name_raw << std::endl;
CFGType cfg;
ConfGraph confgraph;
cfg = BuildCFGForFunction(func);
EnforcePhysicalRegs(cfg);
do {
cfg = BuildCFGForFunction(func);
EnforcePhysicalRegs(cfg);
LiveAnalysis(cfg);
confgraph = BuildConfGraph(cfg);
} while (TryColoring(func, cfg, confgraph));
} while (ConductColoring(func, cfg, confgraph));
}
std::shared_ptr<ModuleItem> RegAlloc(std::shared_ptr<ModuleItem> src) {