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-rw-r--r--clang/lib/Driver/Tools.cpp7
-rw-r--r--clang/test/Driver/le32-toolchain.c4
2 files changed, 11 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 83aab8db4d7..28bf5dddeb6 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3476,6 +3476,13 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
options::OPT_fno_apple_pragma_pack, false))
CmdArgs.push_back("-fapple-pragma-pack");
+ // le32-specific flags:
+ // -fno-math-builtin: clang should not convert math builtins to intrinsics
+ // by default.
+ if (getToolChain().getArch() == llvm::Triple::le32) {
+ CmdArgs.push_back("-fno-math-builtin");
+ }
+
// Default to -fno-builtin-str{cat,cpy} on Darwin for ARM.
//
// FIXME: This is disabled until clang -cc1 supports -fno-builtin-foo. PR4941.
diff --git a/clang/test/Driver/le32-toolchain.c b/clang/test/Driver/le32-toolchain.c
new file mode 100644
index 00000000000..bab550262ed
--- /dev/null
+++ b/clang/test/Driver/le32-toolchain.c
@@ -0,0 +1,4 @@
+// RUN: %clang -### -target le32-unknown-nacl %s 2>&1 | FileCheck -check-prefix=CHECK-DEFAULT %s
+
+// CHECK-DEFAULT: "-cc1" {{.*}} "-fno-math-builtin"
+
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