merge of 'a96c9acac99b5599d2b0fb0a518603646414d166'

     and 'e8fe2283e0bda61a19e3e7f4cf561a638aa1b1fd'

1 files changed, 182 insertions, 0 deletions

diff --git a/packages/glibc/files/ppc-soft-fp-20070115.patch b/packages/glibc/files/ppc-soft-fp-20070115.patch
new file mode 100644
index 0000000000..a84bc2f7cb
--- /dev/null
+++ b/packages/glibc/files/ppc-soft-fp-20070115.patch
@@ -0,0 +1,182 @@
+2007-01-14  Steven Munroe  <sjmunroe@us.ibm.com>
+	    Joe Kerian  <jkerian@us.us.ibm.com>
+
+	[BZ #2749]
+	* soft-fp/op-4.h (__FP_FRAC_SUB_3, __FP_FRAC_SUB_4): Correct borrow
+	handling for high words.
+	* soft-fp/op-common.h (_FP_OVERFLOW_SEMIRAW): Always set inexact
+	and overflow for infinity.
+	(_FP_PACK_SEMIRAW): Update comment.  Do not round if NaN or Inf.
+
+	* math/basic-test.c (truncdfsf_test): New function.
+	[!NO_LONG_DOUBLE] (trunctfsf_test): New function.
+	[!NO_LONG_DOUBLE] (trunctfdf_test): New function.
+	Change main() to do_test. Define TEST_FUNCTION. Include test-skeleton.c. 
+	(do_test): Run new tests.
+
+2007-01-15  Jakub Jelinek  <jakub@redhat.com>
+
+	* soft-fp/op-common.h (FP_TRUNC): When truncating a NaN, clear
+	workbits in semi-raw fraction.
+
+
+diff -urN libc25-cvstip-20070104/math/basic-test.c libc24/math/basic-test.c
+--- libc25-cvstip-20070104/math/basic-test.c	2001-07-05 23:55:35.000000000 -0500
++++ libc24/math/basic-test.c	2007-01-15 11:41:17.260963824 -0600
+@@ -1,4 +1,4 @@
+-/* Copyright (C) 1999 Free Software Foundation, Inc.
++/* Copyright (C) 1999, 2007 Free Software Foundation, Inc.
+    This file is part of the GNU C Library.
+    Contributed by Andreas Jaeger <aj@suse.de>, 1999.
+ 
+@@ -107,17 +107,90 @@
+ TEST_FUNC (double_test, double, nan, DBL_EPSILON, HUGE_VAL)
+ #ifndef NO_LONG_DOUBLE
+ TEST_FUNC (ldouble_test, long double, nanl, LDBL_EPSILON, HUGE_VALL)
++
++void
++trunctfsf_test(void)
++{
++  volatile long double Inf_var, NaN_var, zero_var, one_var;
++  float x1, x2;
++
++  zero_var = 0.0;
++  one_var = 1.0;
++  NaN_var = zero_var/zero_var;
++  Inf_var = one_var / zero_var;
++
++  (void) &zero_var;
++  (void) &one_var;
++  (void) &NaN_var;
++  (void) &Inf_var;
++
++  x1 = (float)NaN_var;
++  check (" float x = (float)((long double)NaN))", isnan (x1) != 0);
++  x2 = (float)Inf_var;
++  check (" float x = (float)((long double)Inf))", isinf (x2) != 0);
++}
++
++void
++trunctfdf_test(void)
++{
++  volatile long double Inf_var, NaN_var, zero_var, one_var;
++  double x1, x2;
++
++  zero_var = 0.0;
++  one_var = 1.0;
++  NaN_var = zero_var/zero_var;
++  Inf_var = one_var / zero_var;
++
++  (void) &zero_var;
++  (void) &one_var;
++  (void) &NaN_var;
++  (void) &Inf_var;
++
++  x1 = (double)NaN_var;
++  check (" double x = (double)((long double)NaN))", isnan (x1) != 0);
++  x2 = (double)Inf_var;
++  check (" double x = (double)((long double)Inf))", isinf (x2) != 0);
++}
++
+ #endif
+ 
++void
++truncdfsf_test(void)
++{
++  volatile double Inf_var, NaN_var, zero_var, one_var;
++  float x1, x2;
++
++  zero_var = 0.0;
++  one_var = 1.0;
++  NaN_var = zero_var/zero_var;
++  Inf_var = one_var / zero_var;
++
++  (void) &zero_var;
++  (void) &one_var;
++  (void) &NaN_var;
++  (void) &Inf_var;
++
++  x1 = (float)NaN_var;
++  check (" float x = (float)((double)NaN))", isnan (x1) != 0);
++  x2 = (float)Inf_var;
++  check (" float x = (float)((double)Inf))", isinf (x2) != 0);
++}
++
+ int
+-main (void)
++do_test (void)
+ {
+   float_test ();
+   double_test ();
++  truncdfsf_test();
+ 
+ #ifndef NO_LONG_DOUBLE
+   ldouble_test ();
++  trunctfsf_test();
++  trunctfdf_test();
+ #endif
+ 
+   return errors != 0;
+ }
++
++#define TEST_FUNCTION do_test ()
++#include "../test-skeleton.c"
+diff -urN libc25-cvstip-20070104/soft-fp/op-4.h libc24/soft-fp/op-4.h
+--- libc25-cvstip-20070104/soft-fp/op-4.h	2006-04-04 03:24:47.000000000 -0500
++++ libc24/soft-fp/op-4.h	2007-01-11 11:00:53.000000000 -0600
+@@ -564,7 +564,7 @@
+     r1 = x1 - y1;						\
+     _c2 = r1 > x1;						\
+     r1 -= _c1;							\
+-    _c2 |= r1 > _c1;						\
++    _c2 |= _c1 && (y1 == x1);					\
+     r2 = x2 - y2 - _c2;						\
+   } while (0)
+ #endif
+@@ -578,11 +578,11 @@
+     r1 = x1 - y1;						\
+     _c2 = r1 > x1;						\
+     r1 -= _c1;							\
+-    _c2 |= r1 > _c1;						\
++    _c2 |= _c1 && (y1 == x1);					\
+     r2 = x2 - y2;						\
+     _c3 = r2 > x2;						\
+     r2 -= _c2;							\
+-    _c3 |= r2 > _c2;						\
++    _c3 |= _c2 && (y2 == x2);					\
+     r3 = x3 - y3 - _c3;						\
+   } while (0)
+ #endif
+diff -urN libc25-cvstip-20070104/soft-fp/op-common.h libc24/soft-fp/op-common.h
+--- libc25-cvstip-20070104/soft-fp/op-common.h	2006-04-04 03:24:47.000000000 -0500
++++ libc24/soft-fp/op-common.h	2007-01-15 11:46:17.290882288 -0600
+@@ -1,5 +1,5 @@
+ /* Software floating-point emulation. Common operations.
+-   Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc.
++   Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc.
+    This file is part of the GNU C Library.
+    Contributed by Richard Henderson (rth@cygnus.com),
+ 		  Jakub Jelinek (jj@ultra.linux.cz),
+@@ -99,10 +99,10 @@
+   else							\
+     {							\
+       X##_e = _FP_EXPMAX_##fs - 1;			\
+-      FP_SET_EXCEPTION(FP_EX_OVERFLOW);			\
+-      FP_SET_EXCEPTION(FP_EX_INEXACT);			\
+       _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc);		\
+     }							\
++    FP_SET_EXCEPTION(FP_EX_INEXACT);			\
++    FP_SET_EXCEPTION(FP_EX_OVERFLOW);			\
+ } while (0)
+ 
+ /* Check for a semi-raw value being a signaling NaN and raise the
+@@ -1252,6 +1252,9 @@
+ 	      _FP_FRAC_SRL_##swc(S, (_FP_WFRACBITS_##sfs		     \
+ 				     - _FP_WFRACBITS_##dfs));		     \
+ 	      _FP_FRAC_COPY_##dwc##_##swc(D, S);			     \
++	      /* Semi-raw NaN must have all workbits cleared.  */	     \
++	      _FP_FRAC_LOW_##dwc(D)					     \
++		&= ~(_FP_W_TYPE) ((1 << _FP_WORKBITS) - 1);		     \
+ 	      _FP_FRAC_HIGH_##dfs(D) |= _FP_QNANBIT_SH_##dfs;		     \
+ 	    }								     \
+ 	}								     \