lto-opts.c (lto_write_options): Handle -fmath-errno, -fsigned-zeros and -ftrapping-math.

	* lto-opts.c (lto_write_options): Handle -fmath-errno, -fsigned-zeros
	and -ftrapping-math.
	* lto-wrapper.c (merge_and_complain): Likewise.
	(run_gcc): Likewise.

From-SVN: r215966

3 files changed, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/lto16.adb b/gcc/testsuite/gnat.dg/lto16.adb
new file mode 100644
index 0000000..82d02b4
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/lto16.adb
@@ -0,0 +1,17 @@
+-- { dg-do link }
+-- { dg-options "-O -flto" }
+-- { dg-require-effective-target lto }
+
+with Lto16_Pkg; use Lto16_Pkg;
+with Text_IO; use Text_IO;
+
+procedure Lto16 is
+begin
+  if F = 0.0 then
+    Put_Line ("zero");
+  else
+    Put_Line ("non-zero");
+  end if;
+exception
+  when others => Put_Line ("exception");
+end;
diff --git a/gcc/testsuite/gnat.dg/lto16_pkg.adb b/gcc/testsuite/gnat.dg/lto16_pkg.adb
new file mode 100644
index 0000000..edfa399
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/lto16_pkg.adb
@@ -0,0 +1,18 @@
+with Ada.Calendar; use Ada.Calendar;
+
+package body Lto16_Pkg is
+
+  function F return Float is
+    F1 : Float := Float (Seconds (Clock));
+    F2 : Float := Float (Seconds (Clock));
+    F  : Float;
+  begin
+    if F1 > F2 then
+      F := (F2 - F1) / 2.0;
+    else
+      F := (F1 - F2) / 2.0;
+    end if;
+    return F;
+  end;
+
+end Lto16_Pkg;
diff --git a/gcc/testsuite/gnat.dg/lto16_pkg.ads b/gcc/testsuite/gnat.dg/lto16_pkg.ads
new file mode 100644
index 0000000..e9b74d3
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/lto16_pkg.ads
@@ -0,0 +1,5 @@
+package Lto16_Pkg is
+
+  function F return Float;
+
+end Lto16_Pkg;