From 5122cbe743b607e9af3b17c25aef48d8185ff602 Mon Sep 17 00:00:00 2001
From: Petr Hosek <phosek@chromium.org>
Date: Sun, 23 Jul 2017 22:30:13 +0000
Subject: [PATCH] [Driver] Fuchsia defaults to -fno-math-errno
Patch by Roland McGrath
Differential Revision: https://reviews.llvm.org/D35747
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@308855 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Driver/ToolChains/Fuchsia.h | 1 +
test/Driver/fast-math.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/lib/Driver/ToolChains/Fuchsia.h b/lib/Driver/ToolChains/Fuchsia.h
index a723a99dfa3..2eb8f011a1a 100644
--- a/lib/Driver/ToolChains/Fuchsia.h
+++ b/lib/Driver/ToolChains/Fuchsia.h
@@ -42,6 +42,7 @@ public:
bool HasNativeLLVMSupport() const override { return true; }
bool IsIntegratedAssemblerDefault() const override { return true; }
+ bool IsMathErrnoDefault() const override { return false; }
RuntimeLibType GetDefaultRuntimeLibType() const override {
return ToolChain::RLT_CompilerRT;
}
diff --git a/test/Driver/fast-math.c b/test/Driver/fast-math.c
index 97fda009b9c..5094a5bc1ab 100644
--- a/test/Driver/fast-math.c
+++ b/test/Driver/fast-math.c
@@ -93,6 +93,8 @@
// RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s
// RUN: %clang -### -target x86_64-unknown-dragonfly -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s
+// RUN: %clang -### -target x86_64-fuchsia -c %s 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s
//
// Check that -ffast-math disables -fmath-errno, and -fno-fast-math merely
// preserves the target default. Also check various flag set operations between
--
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