Add -mlong-double-128 and make it default for 64-bit Bionic

gcc/

	* config/i386/i386.c (flag_opts): Add -mlong-double-128.
	(ix86_option_override_internal): Default long double to 64-bit for
	32-bit Bionic and to 128-bit for 64-bit Bionic.

	* config/i386/i386.h (LONG_DOUBLE_TYPE_SIZE): Use 128 if
	TARGET_LONG_DOUBLE_128 is true.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.

	* config/i386/i386.opt (mlong-double-80): Negate -mlong-double-64.
	(mlong-double-64): Negate -mlong-double-128.
	(mlong-double-128): New option.

	* config/i386/i386-c.c (ix86_target_macros): Define
	__LONG_DOUBLE_128__ for TARGET_LONG_DOUBLE_128.

	* doc/invoke.texi: Document -mlong-double-128.

gcc/testsuite/

	* gcc.target/i386/long-double-64-1.c: Verify __multf3 isn't used.
	* gcc.target/i386/long-double-64-4.c: Likewise.
	* gcc.target/i386/long-double-80-1.c: Likewise.
	* gcc.target/i386/long-double-80-2.c: Likewise.
	* gcc.target/i386/long-double-80-3.c: Likewise.
	* gcc.target/i386/long-double-80-4.c: Likewise.
	* gcc.target/i386/long-double-80-5.c: Likewise.
	* gcc.target/i386/long-double-64-2.c: Limit to ia32.  Verify
	__multf3 isn't used.
	* gcc.target/i386/long-double-64-3.c: Likewise.
	* gcc.target/i386/long-double-128-1.c: New test.
	* gcc.target/i386/long-double-128-2.c: Likewise.
	* gcc.target/i386/long-double-128-3.c: Likewise.
	* gcc.target/i386/long-double-128-4.c: Likewise.
	* gcc.target/i386/long-double-128-5.c: Likewise.
	* gcc.target/i386/long-double-128-6.c: Likewise.
	* gcc.target/i386/long-double-128-7.c: Likewise.
	* gcc.target/i386/long-double-128-8.c: Likewise.
	* gcc.target/i386/long-double-128-9.c: Likewise.
	* gcc.target/i386/long-double-64-5.c: Likewise.
	* gcc.target/i386/long-double-64-6.c: Likewise.
	* gcc.target/i386/long-double-64-7.c: Likewise.
	* gcc.target/i386/long-double-64-8.c: Likewise.
	* gcc.target/i386/long-double-64-9.c: Likewise.
	* gcc.target/i386/long-double-80-10.c: Likewise.
	* gcc.target/i386/long-double-80-8.c: Likewise.
	* gcc.target/i386/long-double-80-9.c: Likewise.

From-SVN: r207428

27 files changed, 230 insertions, 2 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4f718dd..d87b06e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,33 @@
+2014-02-03  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/long-double-64-1.c: Verify __multf3 isn't used.
+	* gcc.target/i386/long-double-64-4.c: Likewise.
+	* gcc.target/i386/long-double-80-1.c: Likewise.
+	* gcc.target/i386/long-double-80-2.c: Likewise.
+	* gcc.target/i386/long-double-80-3.c: Likewise.
+	* gcc.target/i386/long-double-80-4.c: Likewise.
+	* gcc.target/i386/long-double-80-5.c: Likewise.
+	* gcc.target/i386/long-double-64-2.c: Limit to ia32.  Verify
+	__multf3 isn't used.
+	* gcc.target/i386/long-double-64-3.c: Likewise.
+	* gcc.target/i386/long-double-128-1.c: New test.
+	* gcc.target/i386/long-double-128-2.c: Likewise.
+	* gcc.target/i386/long-double-128-3.c: Likewise.
+	* gcc.target/i386/long-double-128-4.c: Likewise.
+	* gcc.target/i386/long-double-128-5.c: Likewise.
+	* gcc.target/i386/long-double-128-6.c: Likewise.
+	* gcc.target/i386/long-double-128-7.c: Likewise.
+	* gcc.target/i386/long-double-128-8.c: Likewise.
+	* gcc.target/i386/long-double-128-9.c: Likewise.
+	* gcc.target/i386/long-double-64-5.c: Likewise.
+	* gcc.target/i386/long-double-64-6.c: Likewise.
+	* gcc.target/i386/long-double-64-7.c: Likewise.
+	* gcc.target/i386/long-double-64-8.c: Likewise.
+	* gcc.target/i386/long-double-64-9.c: Likewise.
+	* gcc.target/i386/long-double-80-10.c: Likewise.
+	* gcc.target/i386/long-double-80-8.c: Likewise.
+	* gcc.target/i386/long-double-80-9.c: Likewise.
+
 2014-02-03  Andrey Belevantsev  <abel@ispras.ru>
 
 	PR rtl-optimization/57662
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-1.c b/gcc/testsuite/gcc.target/i386/long-double-128-1.c
new file mode 100644
index 0000000..cbd9bb5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-1.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-128" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-2.c b/gcc/testsuite/gcc.target/i386/long-double-128-2.c
new file mode 100644
index 0000000..9aef4bf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-2.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target { *-*-linux* && { ! ia32 } } } } */
+/* { dg-options "-O2 -mbionic" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-3.c b/gcc/testsuite/gcc.target/i386/long-double-128-3.c
new file mode 100644
index 0000000..86b9b12
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-3.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target { *-*-linux* && { ! ia32 } } } } */
+/* { dg-options "-O2 -mandroid" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-4.c b/gcc/testsuite/gcc.target/i386/long-double-128-4.c
new file mode 100644
index 0000000..af73635
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-4.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target { *-*-linux* && { ! ia32 } } } } */
+/* { dg-options "-O2 -mlong-double-128 -mbionic" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-5.c b/gcc/testsuite/gcc.target/i386/long-double-128-5.c
new file mode 100644
index 0000000..fb32c5b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-5.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target { *-*-linux* && { ! ia32 } } } } */
+/* { dg-options "-O2 -mlong-double-128 -mandroid" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-6.c b/gcc/testsuite/gcc.target/i386/long-double-128-6.c
new file mode 100644
index 0000000..2797516
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-6.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-64 -mlong-double-128" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-7.c b/gcc/testsuite/gcc.target/i386/long-double-128-7.c
new file mode 100644
index 0000000..eaa7f63
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-7.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-64" } */
+
+__float128
+foo (__float128 x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-8.c b/gcc/testsuite/gcc.target/i386/long-double-128-8.c
new file mode 100644
index 0000000..d869efc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-8.c
@@ -0,0 +1,11 @@
+/* { dg-do run } */
+/* { dg-options "-O0 -mlong-double-64 -mfpmath=387" } */
+
+int
+main ()
+{
+  __float128 a = -0.23456789;
+  if ((double) a >= 0)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/i386/long-double-128-9.c b/gcc/testsuite/gcc.target/i386/long-double-128-9.c
new file mode 100644
index 0000000..bc90f21
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-128-9.c
@@ -0,0 +1,13 @@
+/* { dg-do run } */
+/* { dg-options "-O0 -mlong-double-64 -mfpmath=sse -msse2" } */
+/* { dg-require-effective-target sse2 } */
+
+#include "sse2-check.h"
+
+static void
+sse2_test (void)
+{
+  __float128 a = -0.23456789;
+  if ((double) a >= 0)
+    __builtin_abort ();
+}
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-1.c b/gcc/testsuite/gcc.target/i386/long-double-64-1.c
index cf93379..f5c83a5 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-64-1.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-1.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-2.c b/gcc/testsuite/gcc.target/i386/long-double-64-2.c
index ddf4fe6..13a7be0 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-64-2.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-2.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target *-*-linux* } } */
+/* { dg-do compile { target { *-*-linux* && ia32 } } } */
 /* { dg-options "-O2 -mbionic" } */
 
 long double
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-3.c b/gcc/testsuite/gcc.target/i386/long-double-64-3.c
index e748fab..99d3d5f 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-64-3.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-3.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target *-*-linux* } } */
+/* { dg-do compile { target { *-*-linux* && ia32 } } } */
 /* { dg-options "-O2 -mandroid" } */
 
 long double
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-4.c b/gcc/testsuite/gcc.target/i386/long-double-64-4.c
index d9c25aa..471f0bf 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-64-4.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-4.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-5.c b/gcc/testsuite/gcc.target/i386/long-double-64-5.c
new file mode 100644
index 0000000..f634425
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-5.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-128 -mlong-double-64" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-6.c b/gcc/testsuite/gcc.target/i386/long-double-64-6.c
new file mode 100644
index 0000000..76b030d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-6.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-80 -mlong-double-128 -mlong-double-64" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-7.c b/gcc/testsuite/gcc.target/i386/long-double-64-7.c
new file mode 100644
index 0000000..9f66d37
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-7.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-128 -mlong-double-80 -mlong-double-64" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-8.c b/gcc/testsuite/gcc.target/i386/long-double-64-8.c
new file mode 100644
index 0000000..fd2fdbc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-8.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target *-*-linux* } } */
+/* { dg-options "-O2 -mlong-double-64 -mbionic" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-64-9.c b/gcc/testsuite/gcc.target/i386/long-double-64-9.c
new file mode 100644
index 0000000..595dba3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-64-9.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target *-*-linux* } } */
+/* { dg-options "-O2 -mlong-double-64 -mandroid" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler-not "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-1.c b/gcc/testsuite/gcc.target/i386/long-double-80-1.c
index d3b75a0..887bd6c 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-80-1.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-1.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-10.c b/gcc/testsuite/gcc.target/i386/long-double-80-10.c
new file mode 100644
index 0000000..311ae4f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-10.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-128 -mlong-double-64 -mlong-double-80" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-2.c b/gcc/testsuite/gcc.target/i386/long-double-80-2.c
index 954dfd1..7ca0643 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-80-2.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-2.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-3.c b/gcc/testsuite/gcc.target/i386/long-double-80-3.c
index e0e8365..39dc8a4 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-80-3.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-3.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-4.c b/gcc/testsuite/gcc.target/i386/long-double-80-4.c
index cac2d55..4ee21b6 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-80-4.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-4.c
@@ -8,3 +8,4 @@ foo (long double x)
 }
 
 /* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-5.c b/gcc/testsuite/gcc.target/i386/long-double-80-5.c
index 4aa606f..78a1603 100644
--- a/gcc/testsuite/gcc.target/i386/long-double-80-5.c
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-5.c
@@ -8,3 +8,4 @@ foo (__float80 x)
 }
 
 /* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-8.c b/gcc/testsuite/gcc.target/i386/long-double-80-8.c
new file mode 100644
index 0000000..b82305f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-8.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-128 -mlong-double-80" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */
diff --git a/gcc/testsuite/gcc.target/i386/long-double-80-9.c b/gcc/testsuite/gcc.target/i386/long-double-80-9.c
new file mode 100644
index 0000000..91ff9d1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/long-double-80-9.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mlong-double-64 -mlong-double-128 -mlong-double-80" } */
+
+long double
+foo (long double x)
+{
+  return x * x;
+}
+
+/* { dg-final { scan-assembler "fldt" } } */
+/* { dg-final { scan-assembler-not "call\[\\t \]*_?__multf3" } } */