[PATCH] D146054: [RISCV] Add -print-supported-marchs and -march=help support

[Fangrui Song via Phabricator via cfe-commits]

MaskRay requested changes to this revision.
MaskRay added inline comments.
This revision now requires changes to proceed.


================
Comment at: clang/test/Driver/print-supported-marchs.c:17
+// CHECK-RISCV: 	i                   2.0
+// CHECK-RISCV: 	e                   1.9
+// CHECK-RISCV: 	m                   2.0
----------------
Use `-NEXT:` whenever applicable so that new extensions can be caught by the test.


================
Comment at: clang/tools/driver/cc1_main.cpp:197
+  if (TargetStr.find("riscv") == std::string::npos) {
+    llvm::errs() << "The -march=help only supports for RISCV target.\n";
+    return 1;
----------------
The check should be added to lib/Driver


================
Comment at: clang/tools/driver/cc1_main.cpp:201
+
+  llvm::RISCVMarchHelp();
+
----------------
`riscvMarchHelp`

Use camelCase for new function names.


================
Comment at: llvm/lib/Support/RISCVISAInfo.cpp:162
+
+  errs() << '\n';
+
----------------
Move '\n' into the "Use -march to specify the target's extension.\n..." string.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D146054/new/

https://reviews.llvm.org/D146054