ia64.c (rtx_needs_barrier): Handle UNSPEC_FR_SQRT_RECIP_APPROX_RES.

[thirdparty/gcc.git] / gcc / ChangeLog

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+2008-04-14  James E. Wilson  <wilson@tuliptree.org>
+
+       * config/ia64/ia64.c (rtx_needs_barrier): Handle
+       UNSPEC_FR_SQRT_RECIP_APPROX_RES.
+       * config/ia64/ia64.c (UNSPEC_FR_SQRT_RECIP_APPROX_RES): Define.
+       (divsi3_internal, divdi3_internal_lat, divdi3_internal_thr,
+       divsf3_internal_lat, sqrt_approx, sqrtsf2_internal_thr,
+       divdf3_internal_lat, sqrtdf2_internal_thr, divxf3_internal_lat,
+       divxf3_internal_thr, sqrtxf2_internal_thr, recip_approx): Use it.
+
+2008-04-14  Ian Lance Taylor  <iant@google.com>
+
+       * flags.h (POINTER_TYPE_OVERFLOW_UNDEFINED): Define.
+       * fold-const.c (fold_comparison): If appropriate, test
+       POINTER_TYPE_OVERFLOW_UNDEFINED, and issue an overflow warning.
+       (fold_binary): Test POINTER_TYPE_OVERFLOW_UNDEFINED when
+       reassociating a pointer type.
+       * doc/invoke.texi (Optimize Options): Document that
+       -fstrict-overflow applies to pointer wraparound.
+
 2008-04-13  Jan Hubicka  <jh@suse.cz>
 
        * m32.c (m32c_pushm_popm): Use crtl->retrun_rtx.