[gcc] GCC 4.5.0=>4.5.1

gcc/gcc/testsuite/lib/target-supports.exp

-#   Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+#   Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
 #    Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 10 matching lines @@
 
 # Try to compile the code given by CONTENTS into an output file of
 # type TYPE, where TYPE is as for target_compile.  Return a list
 # whose first element contains the compiler messages and whose
 # second element is the name of the output file.
 #
 # BASENAME is a prefix to use for source and output files.
 # If ARGS is not empty, its first element is a string that
 # should be added to the command line.
 #
-# Assume by default that CONTENTS is C code.  C++ code should contain
-# "// C++" and Fortran code should contain "! Fortran".
+# Assume by default that CONTENTS is C code.  
+# Otherwise, code should contain:
+# "// C++" for c++,
+# "! Fortran" for Fortran code,
+# "/* ObjC", for ObjC
+# and "// ObjC++" for ObjC++
+# If the tool is ObjC/ObjC++ then we overide the extension to .m/.mm to 
+# allow for ObjC/ObjC++ specific flags.
 proc check_compile {basename type contents args} {
     global tool
+    verbose "check_compile tool: $tool for $basename" 
 
     if { [llength $args] > 0 } {
         set options [list "additional_flags=[lindex $args 0]"]
     } else {
         set options ""
     }
     switch -glob -- $contents {
         "*! Fortran*" { set src ${basename}[pid].f90 }
         "*// C++*" { set src ${basename}[pid].cc }
-        default { set src ${basename}[pid].c }
+        "*// ObjC++*" { set src ${basename}[pid].mm }
+        "*/* ObjC*" { set src ${basename}[pid].m }
+        default {
+            switch -- $tool {
+                "objc" { set src ${basename}[pid].m }
+                "obj-c++" { set src ${basename}[pid].mm }
+                default { set src ${basename}[pid].c }
+            }
+        }
     }
+
     set compile_type $type
     switch -glob $type {
         assembly { set output ${basename}[pid].s }
         object { set output ${basename}[pid].o }
         executable { set output ${basename}[pid].exe }
         "rtl-*" {
             set output ${basename}[pid].s
             lappend options "additional_flags=-fdump-$type"
             set compile_type assembly
         }
@@ skipping 321 matching lines @@
         # VxWorks kernel modules are relocatable objects linked with -r,
         # while RTP executables are linked with -q (--emit-relocs).
         # Both of these options are incompatible with --gc-sections.
         if { [istarget *-*-vxworks*] } {
             set gc_sections_available_saved 0
             return 0
         }
 
         # Check if the ld used by gcc supports --gc-sections.
         set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
-        regsub ".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
+        regsub ".*\n\\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
         set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
         set ld_output [remote_exec host "$gcc_ld" "--help"]
         if { [ string first "--gc-sections" $ld_output ] >= 0 } {
             set gc_sections_available_saved 1
         } else {
             set gc_sections_available_saved 0
         }
     }
     return $gc_sections_available_saved
 }
@@ skipping 85 matching lines @@
         # missing other needed machinery.
         if { [istarget mmix-*-*]
              || [istarget arm*-*-eabi*]
              || [istarget picochip-*-*]
              || [istarget *-*-netware*]
              || [istarget arm*-*-elf]
              || [istarget arm*-*-symbianelf*]
              || [istarget avr-*-*]
              || [istarget bfin-*-*]
              || [istarget powerpc-*-eabi*]
+             || [istarget powerpc-*-elf]
              || [istarget cris-*-*]
              || [istarget crisv32-*-*]
              || [istarget fido-*-elf]
              || [istarget h8300-*-*]
-             || [istarget m32c-*-elf]
+             || [istarget lm32-*-*]
+             || [istarget m32c-*-elf]
              || [istarget m68k-*-elf]
              || [istarget m68k-*-uclinux*]
+             || [istarget mep-*-elf]
              || [istarget mips*-*-elf*]
+             || [istarget moxie-*-elf*]
+             || [istarget rx-*-*]       
              || [istarget xstormy16-*]
              || [istarget xtensa*-*-elf]
              || [istarget *-*-rtems*]
              || [istarget *-*-vxworks*] } {
             set profiling_available_saved 0
         } else {
             set profiling_available_saved 1
         }
     }
 
@@ skipping 92 matching lines @@
 
 # Return 1 if compilation with -pthread is error-free for trivial
 # code, 0 otherwise.
 
 proc check_effective_target_pthread {} {
     return [check_no_compiler_messages pthread object {
         void foo (void) { }
     } "-pthread"]
 }
 
+# Return 1 if compilation with -mpe-aligned-commons is error-free
+# for trivial code, 0 otherwise.
+
+proc check_effective_target_pe_aligned_commons {} {
+    if { [istarget *-*-cygwin*] || [istarget *-*-mingw*] } {
+        return [check_no_compiler_messages pe_aligned_commons object {
+            int foo;
+        } "-mpe-aligned-commons"]
+    }
+    return 0
+}
+
 # Return 1 if the target supports -static
 proc check_effective_target_static {} {
     return [check_no_compiler_messages static executable {
         int main (void) { return 0; }
     } "-static"]
 }
 
 # Return 1 if the target supports -fstack-protector
 proc check_effective_target_fstack_protector {} {
     return [check_runtime fstack_protector {
@@ skipping 41 matching lines @@
 
 proc check_effective_target_hard_float { } {
     if { [istarget mips*-*-*] } {
         return [check_no_compiler_messages hard_float assembly {
                 #if (defined __mips_soft_float || defined __mips16)
                 #error FOO
                 #endif
         }]
     }
 
+    # This proc is actually checking the availabilty of FPU
+    # support for doubles, so on the RX we must fail if the
+    # 64-bit double multilib has been selected.
+    if { [istarget rx-*-*] } {
+        return 0
+        # return [check_no_compiler_messages hard_float assembly {
+                #if defined __RX_64_BIT_DOUBLES__
+                #error FOO
+                #endif
+        # }]
+    }
+
     # The generic test equates hard_float with "no call for adding doubles".
     return [check_no_messages_and_pattern hard_float "!\\(call" rtl-expand {
         double a (double b, double c) { return b + c; }
     }]
 }
 
 # Return true if the target is a 64-bit MIPS target.
 
 proc check_effective_target_mips64 { } {
     return [check_no_compiler_messages mips64 assembly {
@@ skipping 35 matching lines @@
         #error FOO
         #endif
         #if defined __mips_hard_float \
             && (!defined _ABIO32 || _MIPS_SIM != _ABIO32) \
             && (!defined _ABIO64 || _MIPS_SIM != _ABIO64)
         #error FOO
         #endif
     } [add_options_for_mips16_attribute ""]]
 }
 
+# Return 1 if the target supports long double larger than double when
+# using the new ABI, 0 otherwise.
+
+proc check_effective_target_mips_newabi_large_long_double { } {
+    return [check_no_compiler_messages mips_newabi_large_long_double object {
+        int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
+    } "-mabi=64"]
+}
+
 # Return 1 if the current multilib does not generate PIC by default.
 
 proc check_effective_target_nonpic { } {
     return [check_no_compiler_messages nonpic assembly {
         #if __PIC__
         #error FOO
         #endif
     }]
 }
 
@@ skipping 109 matching lines @@
                  #else
                    asm volatile ("ps_mul 0,0,0");
                  #endif
                    return 0;
                  }
             } "-mpaired"
         }
     }]
 }
 
+# Return 1 if the target OS supports running SSE executables, 0
+# otherwise.  Cache the result.
+
+proc check_sse_os_support_available { } {
+    return [check_cached_effective_target sse_os_support_available {
+        # If this is not the right target then we can skip the test.
+        if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
+            expr 0
+        } elseif { [istarget i?86-*-solaris2*] } {
+            # The Solaris 2 kernel doesn't save and restore SSE registers
+            # before Solaris 9 4/04.  Before that, executables die with SIGILL.
+            check_runtime_nocache sse_os_support_available {
+                int main ()
+                {
+                    __asm__ volatile ("movss %xmm2,%xmm1");
+                    return 0;
+                }
+            } "-msse"
+        } else {
+            expr 1
+        }
+    }]
+}
+
+# Return 1 if the target supports executing SSE instructions, 0
+# otherwise.  Cache the result.
+
+proc check_sse_hw_available { } {
+    return [check_cached_effective_target sse_hw_available {
+        # If this is not the right target then we can skip the test.
+        if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
+            expr 0
+        } else {
+            check_runtime_nocache sse_hw_available {
+                #include "cpuid.h"
+                int main ()
+                {
+                  unsigned int eax, ebx, ecx, edx = 0;
+                  if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
+                    return !(edx & bit_SSE);
+                  return 1;
+                }
+            } ""
+        }
+    }]
+}
+
 # Return 1 if the target supports executing SSE2 instructions, 0
 # otherwise.  Cache the result.
 
 proc check_sse2_hw_available { } {
     return [check_cached_effective_target sse2_hw_available {
         # If this is not the right target then we can skip the test.
         if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
             expr 0
         } else {
             check_runtime_nocache sse2_hw_available {
                 #include "cpuid.h"
                 int main ()
                 {
                   unsigned int eax, ebx, ecx, edx = 0;
                   if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
                     return !(edx & bit_SSE2);
                   return 1;
                 }
             } ""
         }
     }]
 }
 
+# Return 1 if the target supports running SSE executables, 0 otherwise.
+
+proc check_effective_target_sse_runtime { } {
+    if { [check_sse_hw_available] && [check_sse_os_support_available] } {
+        return 1
+    } else {
+        return 0
+    }
+}
+
+# Return 1 if the target supports running SSE2 executables, 0 otherwise.
+
+proc check_effective_target_sse2_runtime { } {
+    if { [check_sse2_hw_available] && [check_sse_os_support_available] } {
+        return 1
+    } else {
+        return 0
+    }
+}
+
+# Return 1 if the target supports executing VSX instructions, 0
+# otherwise.  Cache the result.
+
+proc check_vsx_hw_available { } {
+    return [check_cached_effective_target vsx_hw_available {
+        # Some simulators are known to not support VSX instructions.
+        # For now, disable on Darwin
+        if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] || [istarget *-*-darwin*]} {
+            expr 0
+        } else {
+            set options "-mvsx"
+            check_runtime_nocache vsx_hw_available {
+                int main()
+                {
+                #ifdef __MACH__
+                  asm volatile ("xxlor vs0,vs0,vs0");
+                #else
+                  asm volatile ("xxlor 0,0,0");
+                #endif
+                  return 0;
+                }
+            } $options
+        }
+    }]
+}
+
 # Return 1 if the target supports executing AltiVec instructions, 0
 # otherwise.  Cache the result.
 
 proc check_vmx_hw_available { } {
     return [check_cached_effective_target vmx_hw_available {
         # Some simulators are known to not support VMX instructions.
         if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
             expr 0
         } else {
             # Most targets don't require special flags for this test case, but
-            # Darwin does.
+            # Darwin does.  Just to be sure, make sure VSX is not enabled for
+            # the altivec tests.
             if { [istarget *-*-darwin*]
                  || [istarget *-*-aix*] } {
-                set options "-maltivec"
+                set options "-maltivec -mno-vsx"
             } else {
-                set options ""
+                set options "-mno-vsx"
             }
             check_runtime_nocache vmx_hw_available {
                 int main()
                 {
                 #ifdef __MACH__
                   asm volatile ("vor v0,v0,v0");
                 #else
                   asm volatile ("vor 0,0,0");
                 #endif
                   return 0;
@@ skipping 169 matching lines @@
     return [check_function_available "mkfifo"]
 }
 
 # Returns true iff "__cxa_atexit" is used on the target system.
 
 proc check_cxa_atexit_available { } {
     return [check_cached_effective_target cxa_atexit_available {
         if { [istarget "hppa*-*-hpux10*"] } {
             # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
             expr 0
+        } elseif { [istarget "*-*-vxworks"] } {
+            # vxworks doesn't have __cxa_atexit but subsequent test passes.
+            expr 0
         } else {
             check_runtime_nocache cxa_atexit_available {
                 // C++
                 #include <stdlib.h>
                 static unsigned int count;
                 struct X
                 {
                   X() { count = 1; }
                   ~X()
                   {
@@ skipping 16 matching lines @@
                     count = 3;
                   }
                 };
                 Y y;
                 int main() { return 0; }
             }
         }
     }]
 }
 
+proc check_effective_target_objc2 { } {
+    return [check_no_compiler_messages objc2 object {
+        #ifdef __OBJC2__
+        int dummy[1];
+        #else
+        #error
+        #endif 
+    }]
+}
+
+proc check_effective_target_next_runtime { } {
+    return [check_no_compiler_messages objc2 object {
+        #ifdef __NEXT_RUNTIME__
+        int dummy[1];
+        #else
+        #error
+        #endif 
+    }]
+}
 
 # Return 1 if we're generating 32-bit code using default options, 0
 # otherwise.
 
 proc check_effective_target_ilp32 { } {
     return [check_no_compiler_messages ilp32 object {
         int dummy[sizeof (int) == 4
                   && sizeof (void *) == 4
                   && sizeof (long) == 4 ? 1 : -1];
     }]
@@ skipping 60 matching lines @@
 
 # Return 1 if the target supports long double larger than double,
 # 0 otherwise.
 
 proc check_effective_target_large_long_double { } {
     return [check_no_compiler_messages large_long_double object {
         int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
     }]
 }
 
+# Return 1 if the target supports double larger than float,
+# 0 otherwise.
+
+proc check_effective_target_large_double { } {
+    return [check_no_compiler_messages large_double object {
+        int dummy[sizeof(double) > sizeof(float) ? 1 : -1];
+    }]
+}
+
+# Return 1 if the target supports double of 64 bits,
+# 0 otherwise.
+
+proc check_effective_target_double64 { } {
+    return [check_no_compiler_messages double64 object {
+        int dummy[sizeof(double) == 8 ? 1 : -1];
+    }]
+}
+
+# Return 1 if the target supports double of at least 64 bits,
+# 0 otherwise.
+
+proc check_effective_target_double64plus { } {
+    return [check_no_compiler_messages double64plus object {
+        int dummy[sizeof(double) >= 8 ? 1 : -1];
+    }]
+}
+
 # Return 1 if the target supports compiling fixed-point,
 # 0 otherwise.
 
 proc check_effective_target_fixed_point { } {
     return [check_no_compiler_messages fixed_point object {
         _Sat _Fract x; _Sat _Accum y;
     }]
 }
 
 # Return 1 if the target supports compiling decimal floating point,
 # 0 otherwise.
 
 proc check_effective_target_dfp_nocache { } {
     verbose "check_effective_target_dfp_nocache: compiling source" 2
     set ret [check_no_compiler_messages_nocache dfp object {
-        _Decimal32 x; _Decimal64 y; _Decimal128 z;
+        float x __attribute__((mode(DD)));
     }]
     verbose "check_effective_target_dfp_nocache: returning $ret" 2
     return $ret
 }
 
 proc check_effective_target_dfprt_nocache { } {
     return [check_runtime_nocache dfprt {
-        _Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;
+        typedef float d64 __attribute__((mode(DD)));
+        d64 x = 1.2df, y = 2.3dd, z;
         int main () { z = x + y; return 0; }
     }]
 }
 
 # Return 1 if the target supports compiling Decimal Floating Point,
 # 0 otherwise.
 #
 # This won't change for different subtargets so cache the result.
 
 proc check_effective_target_dfp { } {
     return [check_cached_effective_target dfp {
         check_effective_target_dfp_nocache
     }]
 }
 
 # Return 1 if the target supports linking and executing Decimal Floating
-# Point, # 0 otherwise.
+# Point, 0 otherwise.
 #
 # This won't change for different subtargets so cache the result.
 
 proc check_effective_target_dfprt { } {
     return [check_cached_effective_target dfprt {
         check_effective_target_dfprt_nocache
     }]
 }
 
+# Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
+
+proc check_effective_target_ucn_nocache { } {
+    # -std=c99 is only valid for C
+    if [check_effective_target_c] {
+        set ucnopts "-std=c99"
+    }
+    append ucnopts " -fextended-identifiers"
+    verbose "check_effective_target_ucn_nocache: compiling source" 2
+    set ret [check_no_compiler_messages_nocache ucn object {
+        int \u00C0;
+    } $ucnopts]
+    verbose "check_effective_target_ucn_nocache: returning $ret" 2
+    return $ret
+}
+
+# Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
+#
+# This won't change for different subtargets, so cache the result.
+
+proc check_effective_target_ucn { } {
+    return [check_cached_effective_target ucn {
+        check_effective_target_ucn_nocache
+    }]
+}
+
 # Return 1 if the target needs a command line argument to enable a SIMD
 # instruction set.
 
 proc check_effective_target_vect_cmdline_needed { } {
     global et_vect_cmdline_needed_saved
     global et_vect_cmdline_needed_target_name
 
     if { ![info exists et_vect_cmdline_needed_target_name] } {
         set et_vect_cmdline_needed_target_name ""
     }
@@ skipping 84 matching lines @@
 # Return 1 if the target supports unsigned int->float conversion 
 #
 
 proc check_effective_target_vect_uintfloat_cvt { } {
     global et_vect_uintfloat_cvt_saved
 
     if [info exists et_vect_uintfloat_cvt_saved] {
         verbose "check_effective_target_vect_uintfloat_cvt: using cached result" 2
     } else {
         set et_vect_uintfloat_cvt_saved 0
-        if { ([istarget powerpc*-*-*]
-              && ![istarget powerpc-*-linux*paired*]) } {
+        if { [istarget i?86-*-*]
+              || ([istarget powerpc*-*-*]
+                  && ![istarget powerpc-*-linux*paired*])
+              || [istarget x86_64-*-*] } {
            set et_vect_uintfloat_cvt_saved 1
         }
     }
 
     verbose "check_effective_target_vect_uintfloat_cvt: returning $et_vect_uintfloat_cvt_saved" 2
     return $et_vect_uintfloat_cvt_saved
 }
 
 
 # Return 1 if the target supports signed float->int conversion
@@ skipping 54 matching lines @@
 proc check_effective_target_arm_vfp_ok { } {
     if { [check_effective_target_arm32] } {
         return [check_no_compiler_messages arm_vfp_ok object {
             int dummy;
         } "-mfpu=vfp -mfloat-abi=softfp"]
     } else {
         return 0
     }
 }
 
+# Return 1 if this is an ARM target supporting -mfpu=vfp
+# -mfloat-abi=hard.  Some multilibs may be incompatible with these
+# options.
+
+proc check_effective_target_arm_hard_vfp_ok { } {
+    if { [check_effective_target_arm32] } {
+        return [check_no_compiler_messages arm_hard_vfp_ok executable {
+            int main() { return 0;}
+        } "-mfpu=vfp -mfloat-abi=hard"]
+    } else {
+        return 0
+    }
+}
+
 # Return 1 if this is an ARM target supporting -mfpu=neon
 # -mfloat-abi=softfp.  Some multilibs may be incompatible with these
 # options.
 
 proc check_effective_target_arm_neon_ok { } {
     if { [check_effective_target_arm32] } {
         return [check_no_compiler_messages arm_neon_ok object {
+            #include "arm_neon.h"
             int dummy;
         } "-mfpu=neon -mfloat-abi=softfp"]
     } else {
         return 0
     }
 }
 
 # Return 1 is this is an ARM target where -mthumb causes Thumb-1 to be
 # used.
 
 proc check_effective_target_arm_thumb1_ok { } {
     return [check_no_compiler_messages arm_thumb1_ok assembly {
         #if !defined(__arm__) || !defined(__thumb__) || defined(__thumb2__)
         #error FOO
         #endif
     } "-mthumb"]
 }
 
+# Return 1 is this is an ARM target where -mthumb causes Thumb-2 to be
+# used.
+
+proc check_effective_target_arm_thumb2_ok { } {
+    return [check_no_compiler_messages arm_thumb2_ok assembly {
+        #if !defined(__thumb2__)
+        #error FOO
+        #endif
+    } "-mthumb"]
+}
+
 # Return 1 if the target supports executing NEON instructions, 0
 # otherwise.  Cache the result.
 
 proc check_effective_target_arm_neon_hw { } {
     return [check_runtime arm_neon_hw_available {
         int
         main (void)
         {
           long long a = 0, b = 1;
           asm ("vorr %P0, %P1, %P2"
@@ skipping 37 matching lines @@
 proc check_effective_target_arm_eabi { } {
     return [check_no_compiler_messages arm_eabi object {
         #ifndef __ARM_EABI__
         #error not EABI
         #else
         int dummy;
         #endif
     }]
 }
 
+# Return 1 if this is an ARM target supporting -mcpu=iwmmxt.
+# Some multilibs may be incompatible with this option.
+
+proc check_effective_target_arm_iwmmxt_ok { } {
+    if { [check_effective_target_arm32] } {
+        return [check_no_compiler_messages arm_iwmmxt_ok object {
+            int dummy;
+        } "-mcpu=iwmmxt"]
+    } else {
+        return 0
+    }
+}
+
 # Return 1 if this is a PowerPC target with floating-point registers.
 
 proc check_effective_target_powerpc_fprs { } {
     if { [istarget powerpc*-*-*]
          || [istarget rs6000-*-*] } {
         return [check_no_compiler_messages powerpc_fprs object {
             #ifdef __NO_FPRS__
             #error no FPRs
             #else
             int dummy;
@@ skipping 35 matching lines @@
             return 0
         }
         return [check_no_compiler_messages powerpc_altivec_ok object {
             int dummy;
         } "-maltivec"]
     } else {
         return 0
     }
 }
 
+# Return 1 if this is a PowerPC target supporting -mvsx
+
+proc check_effective_target_powerpc_vsx_ok { } {
+    if { ([istarget powerpc*-*-*]
+         && ![istarget powerpc-*-linux*paired*])
+         || [istarget rs6000-*-*] } {
+        # AltiVec is not supported on AIX before 5.3.
+        if { [istarget powerpc*-*-aix4*]
+             || [istarget powerpc*-*-aix5.1*] 
+             || [istarget powerpc*-*-aix5.2*] } {
+            return 0
+        }
+        return [check_no_compiler_messages powerpc_vsx_ok object {
+            int main (void) {
+#ifdef __MACH__
+                asm volatile ("xxlor vs0,vs0,vs0");
+#else
+                asm volatile ("xxlor 0,0,0");
+#endif
+                return 0;
+            }
+        } "-mvsx"]
+    } else {
+        return 0
+    }
+}
+
 # Return 1 if this is a PowerPC target supporting -mcpu=cell.
 
 proc check_effective_target_powerpc_ppu_ok { } {
     if [check_effective_target_powerpc_altivec_ok] {
         return [check_no_compiler_messages cell_asm_available object {
             int main (void) {
 #ifdef __MACH__
                 asm volatile ("lvlx v0,v0,v0");
 #else
                 asm volatile ("lvlx 0,0,0");
@@ skipping 588 matching lines @@
              || [istarget sparc*-*-*]
              || [istarget ia64-*-*]
              || [check_effective_target_arm32] } { 
             set et_vect_no_align_saved 1
         }
     }
     verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
     return $et_vect_no_align_saved
 }
 
+# Return 1 if the target supports a vector misalign access, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_hw_misalign { } {
+    global et_vect_hw_misalign_saved
+
+    if [info exists et_vect_hw_misalign_saved] {
+        verbose "check_effective_target_vect_hw_misalign: using cached result" 2
+    } else {
+        set et_vect_hw_misalign_saved 0
+       if { ([istarget x86_64-*-*] 
+            || [istarget i?86-*-*]) } {
+          set et_vect_hw_misalign_saved 1
+       }
+    }
+    verbose "check_effective_target_vect_hw_misalign: returning $et_vect_hw_misalign_saved" 2
+    return $et_vect_hw_misalign_saved
+}
+
+
 # Return 1 if arrays are aligned to the vector alignment
 # boundary, 0 otherwise.
 #
 # This won't change for different subtargets so cache the result.
 
 proc check_effective_target_vect_aligned_arrays { } {
     global et_vect_aligned_arrays
 
     if [info exists et_vect_aligned_arrays_saved] {
         verbose "check_effective_target_vect_aligned_arrays: using cached result" 2
@@ skipping 140 matching lines @@
 proc check_effective_target_vect_short_mult { } {
     global et_vect_short_mult_saved
 
     if [info exists et_vect_short_mult_saved] {
         verbose "check_effective_target_vect_short_mult: using cached result" 2
     } else {
         set et_vect_short_mult_saved 0
         if { [istarget ia64-*-*]
              || [istarget spu-*-*]
              || [istarget i?86-*-*]
-             || [istarget x86_64-*-*] 
-             || [istarget powerpc*-*-*] 
+             || [istarget x86_64-*-*]
+             || [istarget powerpc*-*-*]
              || [check_effective_target_arm32] } {
            set et_vect_short_mult_saved 1
         }
     }
 
     verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
     return $et_vect_short_mult_saved
 }
 
 # Return 1 if the target supports vector int multiplication, 0 otherwise.
@@ skipping 20 matching lines @@
 
 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
 
 proc check_effective_target_vect_extract_even_odd { } {
     global et_vect_extract_even_odd_saved
     
     if [info exists et_vect_extract_even_odd_saved] {
         verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
     } else {
         set et_vect_extract_even_odd_saved 0 
-        if { [istarget powerpc*-*-*]
+        if { [istarget powerpc*-*-*] 
+             || [istarget i?86-*-*]
+             || [istarget x86_64-*-*]
              || [istarget spu-*-*] } {
            set et_vect_extract_even_odd_saved 1
         }
     }
 
     verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
     return $et_vect_extract_even_odd_saved
 }
 
 # Return 1 if the target supports vector even/odd elements extraction of
@@ skipping 78 matching lines @@
 
 # Return 1 if the target supports section-anchors
 
 proc check_effective_target_section_anchors { } {
     global et_section_anchors_saved
 
     if [info exists et_section_anchors_saved] {
         verbose "check_effective_target_section_anchors: using cached result" 2
     } else {
         set et_section_anchors_saved 0
-        if { [istarget powerpc*-*-*] } {
+        if { [istarget powerpc*-*-*]
+              || [istarget arm*-*-*] } {
            set et_section_anchors_saved 1
         }
     }
 
     verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
     return $et_section_anchors_saved
 }
 
 # Return 1 if the target supports atomic operations on "int" and "long".
 
 proc check_effective_target_sync_int_long { } {
     global et_sync_int_long_saved
 
     if [info exists et_sync_int_long_saved] {
         verbose "check_effective_target_sync_int_long: using cached result" 2
     } else {
         set et_sync_int_long_saved 0
 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
 # load-reserved/store-conditional instructions.
         if { [istarget ia64-*-*]
              || [istarget i?86-*-*]
              || [istarget x86_64-*-*]
              || [istarget alpha*-*-*] 
+             || [istarget bfin*-*linux*]
              || [istarget s390*-*-*] 
              || [istarget powerpc*-*-*]
              || [istarget sparc64-*-*]
              || [istarget sparcv9-*-*]
              || [istarget mips*-*-*] } {
            set et_sync_int_long_saved 1
         }
     }
 
     verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
@@ skipping 148 matching lines @@
 # Return 1 if target supports merging string constants at link time.
 
 proc check_effective_target_string_merging { } {
     return [check_no_messages_and_pattern string_merging \
                 "rodata\\.str" assembly {
                     const char *var = "String";
                 } {-O2}]
 }
 
 # Return 1 if target has the basic signed and unsigned types in
-# <stdint.h>, 0 otherwise.
+# <stdint.h>, 0 otherwise.  This will be obsolete when GCC ensures a
+# working <stdint.h> for all targets.
 
 proc check_effective_target_stdint_types { } {
     return [check_no_compiler_messages stdint_types assembly {
         #include <stdint.h>
         int8_t a; int16_t b; int32_t c; int64_t d;
         uint8_t e; uint16_t f; uint32_t g; uint64_t h;
     }]
 }
 
+# Return 1 if target has the basic signed and unsigned types in
+# <inttypes.h>, 0 otherwise.  This is for tests that GCC's notions of
+# these types agree with those in the header, as some systems have
+# only <inttypes.h>.
+
+proc check_effective_target_inttypes_types { } {
+    return [check_no_compiler_messages inttypes_types assembly {
+        #include <inttypes.h>
+        int8_t a; int16_t b; int32_t c; int64_t d;
+        uint8_t e; uint16_t f; uint32_t g; uint64_t h;
+    }]
+}
+
 # Return 1 if programs are intended to be run on a simulator
 # (i.e. slowly) rather than hardware (i.e. fast).
 
 proc check_effective_target_simulator { } {
 
     # All "src/sim" simulators set this one.
     if [board_info target exists is_simulator] {
         return [board_info target is_simulator]
     }
 
@@ skipping 89 matching lines @@
 proc add_options_for_c99_runtime { flags } {
     if { [istarget *-*-solaris2*] } {
         return "$flags -std=c99"
     }
     if { [istarget powerpc-*-darwin*] } {
         return "$flags -mmacosx-version-min=10.3"
     }
     return $flags
 }
 
+# Add to FLAGS all the target-specific flags needed to enable
+# full IEEE compliance mode.
+
+proc add_options_for_ieee { flags } {
+    if { [istarget "alpha*-*-*"]
+         || [istarget "sh*-*-*"] } {
+       return "$flags -mieee"
+    }
+    return $flags
+}
+
+# Add to FLAGS the flags needed to enable functions to bind locally
+# when using pic/PIC passes in the testsuite.
+
+proc add_options_for_bind_pic_locally { flags } {
+    if {[check_no_compiler_messages using_pic2 assembly {
+        #if __PIC__ != 2
+        #error FOO
+        #endif
+    }]} {
+        return "$flags -fPIE"
+    }
+    if {[check_no_compiler_messages using_pic1 assembly {
+        #if __PIC__ != 1
+        #error FOO
+        #endif
+    }]} {
+        return "$flags -fpie"
+    }
+
+    return $flags
+}
+
 # Return 1 if the target provides a full C99 runtime.
 
 proc check_effective_target_c99_runtime { } {
     return [check_cached_effective_target c99_runtime {
         global srcdir
 
         set file [open "$srcdir/gcc.dg/builtins-config.h"]
         set contents [read $file]
         close $file
         append contents {
@@ skipping 29 matching lines @@
 
 proc check_effective_target_avx { } {
     return [check_no_compiler_messages avx object {
         void _mm256_zeroall (void)
         {
            __builtin_ia32_vzeroall ();
         }
     } "-O2 -mavx" ]
 }
 
+# Return 1 if sse instructions can be compiled.
+proc check_effective_target_sse { } {
+    return [check_no_compiler_messages sse object {
+        int main ()
+        {
+            __builtin_ia32_stmxcsr ();
+            return 0;
+        }
+    } "-O2 -msse" ]
+}
+
+# Return 1 if sse2 instructions can be compiled.
+proc check_effective_target_sse2 { } {
+    return [check_no_compiler_messages sse2 object {
+        typedef long long __m128i __attribute__ ((__vector_size__ (16)));
+        
+        __m128i _mm_srli_si128 (__m128i __A, int __N)
+        {
+            return (__m128i)__builtin_ia32_psrldqi128 (__A, 8);
+        }
+    } "-O2 -msse2" ]
+}
+
 # Return 1 if C wchar_t type is compatible with char16_t.
 
 proc check_effective_target_wchar_t_char16_t_compatible { } {
     return [check_no_compiler_messages wchar_t_char16_t object {
         __WCHAR_TYPE__ wc;
         __CHAR16_TYPE__ *p16 = &wc;
         char t[(((__CHAR16_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
     }]
 }
 
@@ skipping 17 matching lines @@
         x = pow10 (1);
         return 0;
         }
     } "-lm" ]
 }
 
 # Return 1 if current options generate DFP instructions, 0 otherwise.
 
 proc check_effective_target_hard_dfp {} {
     return [check_no_messages_and_pattern hard_dfp "!adddd3" assembly {
-        _Decimal64 x, y, z;
+        typedef float d64 __attribute__((mode(DD)));
+        d64 x, y, z;
         void foo (void) { z = x + y; }
     }]
 }
 
 # Return 1 if string.h and wchar.h headers provide C++ requires overloads
 # for strchr etc. functions.
 
 proc check_effective_target_correct_iso_cpp_string_wchar_protos { } {
     return [check_no_compiler_messages correct_iso_cpp_string_wchar_protos assembly {
         #include <string.h>
         #include <wchar.h>
         #if !defined(__cplusplus) \
             || !defined(__CORRECT_ISO_CPP_STRING_H_PROTO) \
             || !defined(__CORRECT_ISO_CPP_WCHAR_H_PROTO)
         ISO C++ correct string.h and wchar.h protos not supported.
         #else
         int i;
         #endif
     }]
 }
 
+# Return 1 if GNU as is used.
+
+proc check_effective_target_gas { } {
+    global use_gas_saved
+    global tool
+
+    if {![info exists use_gas_saved]} {
+        # Check if the as used by gcc is GNU as.
+        set gcc_as [lindex [${tool}_target_compile "-print-prog-name=as" "" "none" ""] 0]
+        # Provide /dev/null as input, otherwise gas times out reading from
+        # stdin.
+        set status [remote_exec host "$gcc_as" "-v /dev/null"]
+        set as_output [lindex $status 1]
+        if { [ string first "GNU" $as_output ] >= 0 } {
+            set use_gas_saved 1
+        } else {
+            set use_gas_saved 0
+        }
+    }
+    return $use_gas_saved
+}
+
+# Return 1 if the compiler has been configure with link-time optimization
+# (LTO) support.
+
+proc check_effective_target_lto { } {
+    global ENABLE_LTO
+    return [info exists ENABLE_LTO]
+}
+
 # Return 1 if the language for the compiler under test is C.
 
 proc check_effective_target_c { } {
  global tool
     if [string match $tool "gcc"] {
    return 1
     }
  return 0
 }
 
 # Return 1 if the language for the compiler under test is C++.
 
 proc check_effective_target_c++ { } {
  global tool
     if [string match $tool "g++"] {
    return 1
     }
  return 0
 }
-