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* lib/target-supports.exp (check_effective_target_broken_cplxf_arg):
authorjanis <janis@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 11 Feb 2005 22:34:57 +0000 (22:34 +0000)
committerjanis <janis@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 11 Feb 2005 22:34:57 +0000 (22:34 +0000)
New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@94900 138bc75d-0d04-0410-961f-82ee72b054a4

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

index 1ab0ec2..40c87e2 100644 (file)
@@ -1,3 +1,8 @@
+2005-02-11  Janis Johnson  <janis187@us.ibm.com>
+
+       * lib/target-supports.exp (check_effective_target_broken_cplxf_arg):
+       New.
+
 2005-02-11  Jakub Jelinek  <jakub@redhat.com>
 
        PR c++/19666
index 4a91b94..f2577c1 100644 (file)
@@ -386,6 +386,92 @@ proc check_vmx_hw_available { } {
     return $vmx_hw_available_saved
 }
 
+# GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
+# complex float arguments.  This affects gfortran tests that call cabsf
+# in libm built by an earlier compiler.  Return 1 if libm uses the same
+# argument passing as the compiler under test, 0 otherwise.
+#
+# When the target name changes, replace the cached result.
+
+proc check_effective_target_broken_cplxf_arg { } {
+    global et_broken_cplxf_arg_saved
+    global et_broken_cplxf_arg_target_name
+    global tool
+
+    # Skip the work for targets known not to be affected.
+    if { ![istarget powerpc64-*-linux*] } {
+       return 0
+    } elseif { [is-effective-target ilp32] } {
+       return 0
+    }
+
+    if { ![info exists et_broken_cplxf_arg_target_name] } {
+       set et_broken_cplxf_arg_target_name ""
+    }
+
+    # If the target has changed since we set the cached value, clear it.
+    set current_target [current_target_name]
+    if { $current_target != $et_broken_cplxf_arg_target_name } {
+       verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
+       set et_broken_cplxf_arg_target_name $current_target
+       if [info exists et_broken_cplxf_arg_saved] {
+           verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
+           unset et_broken_cplxf_arg_saved
+       }
+    }
+
+    if [info exists et_broken_cplxf_arg_saved] {
+       verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
+    } else {
+       set et_broken_cplxf_arg_saved 0
+       # This is only known to affect one target.
+       if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
+           set et_broken_cplxf_arg_saved 0
+           verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
+           return $et_broken_cplxf_arg_saved
+       }
+
+       # Set up, compile, and execute a C test program that calls cabsf.
+       set src cabsf[pid].c
+       set exe cabsf[pid].x
+
+       set f [open $src "w"]
+       puts $f "#include <complex.h>"
+       puts $f "extern void abort (void);"
+       puts $f "float fabsf (float);"
+       puts $f "float cabsf (_Complex float);"
+       puts $f "int main ()"
+       puts $f "{"
+       puts $f "  _Complex float cf;"
+       puts $f "  float f;"
+       puts $f "  cf = 3 + 4.0fi;"
+       puts $f "  f = cabsf (cf);"
+       puts $f "  if (fabsf (f - 5.0) > 0.0001) abort ();"
+       puts $f "  return 0;"
+       puts $f "}"
+       close $f
+
+       set lines [${tool}_target_compile $src $exe executable "-lm"]
+       file delete $src
+
+       if [string match "" $lines] {
+           # No error message, compilation succeeded.
+           set result [${tool}_load "./$exe" "" ""]
+           set status [lindex $result 0]
+           remote_file build delete $exe
+
+           verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
+
+           if { $status != "pass" } {
+               set et_broken_cplxf_arg_saved 1
+           }
+       } else {
+           verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
+       }
+    }
+    return $et_broken_cplxf_arg_saved
+}
+
 proc check_alpha_max_hw_available { } {
     global alpha_max_hw_available_saved
     global tool