commit 77d4a8f9f7c99172105f184cbb71f052081ccf02
author Alex Bradbury <asb@lowrisc.org> Mon Jul 08 09:38:06 2019 +0000
committer Alex Bradbury <asb@lowrisc.org> Mon Jul 08 09:38:06 2019 +0000
tree 302e31ed8cd8f555a0bec7bd67ef876d24ac7d56
parent d0e1d0039717191a507ee71486b3238c458b27b7

[RISCV] Specify registers used for exception handling

Implements the handling of __builtin_eh_return_regno().

Differential Revision: https://reviews.llvm.org/D63417
Patch by Edward Jones.

llvm-svn: 365305

clang/lib/Basic/Targets/RISCV.h

diff --git a/clang/lib/Basic/Targets/RISCV.h b/clang/lib/Basic/Targets/RISCV.h
index 4fa6969..bc814b7 100644
--- a/clang/lib/Basic/Targets/RISCV.h
+++ b/clang/lib/Basic/Targets/RISCV.h
@@ -57,6 +57,15 @@
 
   ArrayRef<const char *> getGCCRegNames() const override;
 
+  int getEHDataRegisterNumber(unsigned RegNo) const override {
+    if (RegNo == 0)
+      return 10;
+    else if (RegNo == 1)
+      return 11;
+    else
+      return -1;
+  }
+
   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
 
   bool validateAsmConstraint(const char *&Name,