[PATCH] D145809: [RISCV] Error if F and Zfinx extensions are specified together.

[Craig Topper via Phabricator via cfe-commits]

craig.topper created this revision.
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Herald added projects: clang, LLVM.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D145809

Files:
  clang/test/Driver/riscv-arch.c
  llvm/lib/Support/RISCVISAInfo.cpp


Index: llvm/lib/Support/RISCVISAInfo.cpp
===================================================================
--- llvm/lib/Support/RISCVISAInfo.cpp
+++ llvm/lib/Support/RISCVISAInfo.cpp
@@ -839,6 +839,10 @@
         errc::invalid_argument,
         "standard user-level extension 'e' requires 'rv32'");
 
+  if (HasF && HasZfinx)
+    return createStringError(errc::invalid_argument,
+                             "'f' and 'zfinx' extensions are incompatible");
+
   if (HasZve32f && !HasF && !HasZfinx)
     return createStringError(
         errc::invalid_argument,
Index: clang/test/Driver/riscv-arch.c
===================================================================
--- clang/test/Driver/riscv-arch.c
+++ clang/test/Driver/riscv-arch.c
@@ -583,3 +583,8 @@
 // RUN: %clang -target riscv32-unknown-elf -march=rv32i_zmmul1p0 -### %s \
 // RUN: -fsyntax-only 2>&1 | FileCheck -check-prefix=RV32-ZMMUL-GOODVERS %s
 // RV32-ZMMUL-GOODVERS: "-target-feature" "+zmmul"
+
+// RUN: %clang --target=riscv32-unknown-elf -march=rv32ifzfinx -### %s \
+// RUN: -fsyntax-only 2>&1 | FileCheck -check-prefix=RV32-F-ZFINX-ER %s
+// RV32-F-ZFINX-ER: error: invalid arch name 'rv32ifzfinx',
+// RV32-F-ZFINX-ER: 'f' and 'zfinx' extensions are incompatible


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