(GMP_ASM_POWERPC_PIC_ALWAYS): Handle darwin's assembly syntax.

(long long reliability test 1): New GMP_PROG_CC_WORKS_PART test.
(long long reliability test 2): New GMP_PROG_CC_WORKS_PART test.

1 files changed, 35 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 1cfece81e..c8719b2e3 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -584,6 +584,36 @@ int f ()
 }
 ])
 
+GMP_PROG_CC_WORKS_PART([$1], [long long reliability test 1],
+[/* The following provokes a segfault in the compiler on powerpc-apple-darwin.
+   Extracted from tests/mpn/t-iord_u.c.  Causes Apple's gcc 3.3 build 1640 and
+   1666 to segfault with e.g., -O2 -mpowerpc64.  */
+
+#ifdef __GNUC__
+typedef unsigned long long t1;typedef t1*t2;
+__inline__ t1 e(t2 rp,t2 up,int n,t1 v0)
+{t1 c,x,r;int i;if(v0){c=1;for(i=1;i<n;i++){x=up[i];r=x+1;rp[i]=r;}}return c;}
+f(){static const struct{t1 n;t1 src[9];t1 want[9];}d[]={{1,{0},{1}},};t1 got[9];int i;
+for(i=0;i<1;i++){if(e(got,got,9,d[i].n)==0)h();g(i,d[i].src,d[i].n,got,d[i].want,9);if(d[i].n)h();}}
+h(){}g(){}
+#else
+int dummy;
+#endif
+])
+
+GMP_PROG_CC_WORKS_PART([$1], [long long reliability test 2],
+[/* The following provokes an internal compiler error on powerpc-apple-darwin.
+   Extracted from mpz/cfdiv_q_2exp.c.  Causes Apple's gcc 3.3 build 1640 and
+   1666 to get an ICE with -O1 -mpowerpc64.  */
+
+#ifdef __GNUC__
+f(int u){int i;long long x;x=u?~0:0;if(x)for(i=0;i<9;i++);x&=g();if(x)g();}
+g(){}
+#else
+int dummy;
+#endif
+])
+
 GMP_PROG_CC_WORKS_PART_MAIN([$1], [mpn_lshift_com optimization],
 [/* The following is mis-compiled by HP ia-64 cc version
         cc: HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]
@@ -2849,6 +2879,8 @@ dnl  Libtool does this by taking "*-*-aix* | *-*-darwin* | *-*-rhapsody*" to
 dnl  mean PIC always, but it seems more reliable to grep the compiler
 dnl  output.
 dnl
+dnl The next paragraph is untrue for Tiger.  Was it ever true?  For tiger,
+dnl "cc -fast" makes non-PIC the default (and the binaries do run).
 dnl  On Darwin "cc -static" is non-PIC with syntax "ha16(_foo)", but that's
 dnl  apparently only for use in the kernel, which we're not attempting to
 dnl  target at the moment, so don't look for that.
@@ -2871,6 +2903,9 @@ if AC_TRY_EVAL(gmp_compile); then
   if grep 'foo@ha' conftest.s >/dev/null 2>&AC_FD_CC; then
     gmp_cv_asm_powerpc_pic=no
   fi
+  if grep 'ha16(_foo)' conftest.s >/dev/null 2>&AC_FD_CC; then
+    gmp_cv_asm_powerpc_pic=no
+  fi
 fi
 rm -f conftest*
 ])