[RISCV] Default enable RISCV linker relaxation
Differential Revision: https://reviews.llvm.org/D47127
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@354222 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains/Arch/RISCV.cpp b/lib/Driver/ToolChains/Arch/RISCV.cpp
index e40911f..b5cee38 100644
--- a/lib/Driver/ToolChains/Arch/RISCV.cpp
+++ b/lib/Driver/ToolChains/Arch/RISCV.cpp
@@ -364,6 +364,18 @@
getExtensionFeatures(D, Args, Features, MArch, OtherExts);
}
+ // -mrelax is default, unless -mno-relax is specified.
+ bool Relax = true;
+ if (auto *A = Args.getLastArg(options::OPT_mrelax, options::OPT_mno_relax)) {
+ if (A->getOption().matches(options::OPT_mno_relax)) {
+ Relax = false;
+ Features.push_back("-relax");
+ }
+ }
+
+ if (Relax)
+ Features.push_back("+relax");
+
// Now add any that the user explicitly requested on the command line,
// which may override the defaults.
handleTargetFeaturesGroup(Args, Features, options::OPT_m_riscv_Features_Group);
diff --git a/test/Driver/riscv-features.c b/test/Driver/riscv-features.c
index 95f84f3..bdf9ef4 100644
--- a/test/Driver/riscv-features.c
+++ b/test/Driver/riscv-features.c
@@ -9,5 +9,5 @@
// RELAX: "-target-feature" "+relax"
// NO-RELAX: "-target-feature" "-relax"
-// DEFAULT-NOT: "-target-feature" "+relax"
+// DEFAULT: "-target-feature" "+relax"
// DEFAULT-NOT: "-target-feature" "-relax"
