re PR libfortran/51119 (MATMUL slow for large matrices)

2016-11-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/51119
	* Makefile.am: Remove -fno-protect-parens -fstack-arrays.
	* Makefile.in: Regenerate.

From-SVN: r242518

libgfortran/ChangeLog

+2016-11-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/51119
+	* Makefile.am: Remove -fno-protect-parens -fstack-arrays.
+	* Makefile.in: Regenerate.
+
 2016-11-16  Szabolcs Nagy  <szabolcs.nagy@arm.com>
 
 	PR libgfortran/78314

libgfortran/Makefile.am

@@ -850,7 +850,7 @@ intrinsics/dprod_r8.f90 \
 intrinsics/f2c_specifics.F90
 
 # Turn on vectorization and loop unrolling for matmul.
-$(patsubst %.c,%.lo,$(notdir $(i_matmul_c))): AM_CFLAGS += -ffast-math -fno-protect-parens -fstack-arrays -ftree-vectorize -funroll-loops --param max-unroll-times=4 
+$(patsubst %.c,%.lo,$(notdir $(i_matmul_c))): AM_CFLAGS += -ffast-math -ftree-vectorize -funroll-loops --param max-unroll-times=4 
 # Logical matmul doesn't vectorize.
 $(patsubst %.c,%.lo,$(notdir $(i_matmull_c))): AM_CFLAGS += -funroll-loops
 

libgfortran/Makefile.in

@@ -5956,7 +5956,7 @@ uninstall-am: uninstall-cafexeclibLTLIBRARIES \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	 > $@ || (rm -f $@ ; exit 1)
 
 # Turn on vectorization and loop unrolling for matmul.
-$(patsubst %.c,%.lo,$(notdir $(i_matmul_c))): AM_CFLAGS += -ffast-math -fno-protect-parens -fstack-arrays -ftree-vectorize -funroll-loops --param max-unroll-times=4 
+$(patsubst %.c,%.lo,$(notdir $(i_matmul_c))): AM_CFLAGS += -ffast-math -ftree-vectorize -funroll-loops --param max-unroll-times=4 
 # Logical matmul doesn't vectorize.
 $(patsubst %.c,%.lo,$(notdir $(i_matmull_c))): AM_CFLAGS += -funroll-loops