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authorRichard-Qin-X <richard.qin.001@gmail.com>2026-08-24 16:37:25 +0800
committerRichard-Qin-X <richard.qin.001@gmail.com>2026-08-24 16:37:25 +0800
commit540c73a2f450af3d0aec6e039fab054471efdbb1 (patch)
tree9b260322eaeeac8b8741a30a273f7d407b683e5e /backend/tools
parent936ac5647f82def050e6654d44d24a88906f4d7a (diff)
downloadrcc-project-540c73a2f450af3d0aec6e039fab054471efdbb1.tar.gz
rcc-project-540c73a2f450af3d0aec6e039fab054471efdbb1.tar.xz
[RISCV] Match LLVM frame lowering semantics
Diffstat (limited to 'backend/tools')
-rw-r--r--backend/tools/MIRTool/MIRToolMain.cpp14
1 files changed, 11 insertions, 3 deletions
diff --git a/backend/tools/MIRTool/MIRToolMain.cpp b/backend/tools/MIRTool/MIRToolMain.cpp
index b635c27..cfee95d 100644
--- a/backend/tools/MIRTool/MIRToolMain.cpp
+++ b/backend/tools/MIRTool/MIRToolMain.cpp
@@ -706,9 +706,14 @@ void setBackendOption(std::vector<rcc::tooling::BackendOption> &Options, std::st
Command.Invocation.CPU = *CodeGenFlags.CPU;
if (CodeGenFlags.TuneCPU)
Command.Invocation.TuneCPU = *CodeGenFlags.TuneCPU;
- if (CodeGenFlags.ABI)
- Command.Invocation.ABI = *CodeGenFlags.ABI;
applyFeatureOverrides(std::move(CodeGenFlags.FeatureOverrides), Command.Invocation.Features);
+ if (CodeGenFlags.ABI) {
+ Command.Invocation.ABI = *CodeGenFlags.ABI;
+ } else {
+ const bool HasDoubleFloat =
+ std::ranges::find(Command.Invocation.Features, "+d") != Command.Invocation.Features.end();
+ Command.Invocation.ABI = HasDoubleFloat ? "lp64d" : "lp64";
+ }
if (CodeGenFlags.Relocation)
Command.Invocation.Relocation = *CodeGenFlags.Relocation;
if (CodeGenFlags.Code)
@@ -923,8 +928,11 @@ runWithCache(const CommandLine &Command, CanonicalMIR Input, const rcc::TargetDe
rcc::riscv::RISCVSubtargetFeatures::fromFeatureList(Command.Invocation.Features);
if (!Features)
return std::unexpected(Features.error());
+ auto ABI = rcc::riscv::parseRISCVABI(Command.Invocation.ABI);
+ if (!ABI)
+ return std::unexpected(ABI.error());
const rcc::riscv::RISCVSubtarget Subtarget(*Features, Command.Invocation.Relocation,
- Command.Invocation.Code);
+ Command.Invocation.Code, *ABI);
std::vector<std::string> Names;
for (std::size_t Index = 0; Index < Input->Document.unit().functionCount(); ++Index) {
const rcc::MachineFunction *Function = Input->Document.unit().functionAt(Index);