commit d411677deae092cb1199ae511972f1a85ec34ba8
author Alex Bradbury <asb@lowrisc.org> Thu Apr 04 14:18:26 2019 +0000
committer Alex Bradbury <asb@lowrisc.org> Thu Apr 04 14:18:26 2019 +0000
tree 765d4ada7b5fbd367e74bc31450b4d48f14b1ff4
parent aa79a3fe8e09da6b6cb30a70308a804d9b232112

[RISCV] Collect library directories and triples for riscv64 triple too

When setting up library and tools paths when detecting an accompanying GCC
installation only riscv32 was handled. As a consequence when targetting
riscv64 neither the linker nor libraries would be found. This adds handling
and tests for riscv64.

Differential Revision: https://reviews.llvm.org/D53392
Patch by Edward Jones.

llvm-svn: 357699

clang/lib/Driver/ToolChains/Gnu.cpp

diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index d9ac71c..4e0ccce 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -1976,10 +1976,14 @@
       "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
       "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
 
-  static const char *const RISCV32LibDirs[] = {"/lib", "/lib32"};
-  static const char *const RISCVTriples[] = {"riscv32-unknown-linux-gnu",
-                                             "riscv64-unknown-linux-gnu",
-                                             "riscv32-unknown-elf"};
+  static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
+  static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
+                                               "riscv32-linux-gnu",
+                                               "riscv32-unknown-elf"};
+  static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
+  static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
+                                               "riscv64-linux-gnu",
+                                               "riscv64-unknown-elf"};
 
   static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
   static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
@@ -2209,9 +2213,15 @@
     break;
   case llvm::Triple::riscv32:
     LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
+    TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
+    BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
+    BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
+    break;
+  case llvm::Triple::riscv64:
+    LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
+    TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
     BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
-    TripleAliases.append(begin(RISCVTriples), end(RISCVTriples));
-    BiarchTripleAliases.append(begin(RISCVTriples), end(RISCVTriples));
+    BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
     break;
   case llvm::Triple::sparc:
   case llvm::Triple::sparcel: