[PATCH] x32: Encode %esp as %rsp to avoid 0x67 prefix

Since the upper 32 bits of stack register are always zero for x32, we can encode %esp as %rsp to avoid 0x67 prefix in address if there is no index or base register. Tested on x86-64. OK for trunk? H.J. gcc/ PR target/82267 * config/i386/i386.c

Re: [GCC][PATCH][TESTSUITE][ARM][COMMITTED] Invert check to misalign in vect_hw_misalign (PR 78421)

On 23 September 2017 at 16:12, Christophe Lyon wrote: > On 21 September 2017 at 16:48, Tamar Christina > wrote: >> Hi All, >> >> Commit r244796 changed vect_hw_misalign for arm to check against >> arm_vect_no_misalign. However

Re: [PATCH PR82163/V2]New interface checking LCSSA for single loop

On Fri, Sep 22, 2017 at 11:37:53AM +, Bin Cheng wrote: > diff --git a/gcc/tree-ssa-loop-manip.c b/gcc/tree-ssa-loop-manip.c > index d6ba305..6ad0b75 100644 > --- a/gcc/tree-ssa-loop-manip.c > +++ b/gcc/tree-ssa-loop-manip.c > @@ -690,48 +690,62 @@ rewrite_virtuals_into_loop_closed_ssa (struct

[PATCH, i386]: Fix PR bootstrap/82306, bootstrap breakage on Darwin

Hello! We are out of target flags, so use additional (existing) ix86_target_flags variable. 2017-09-23 Uros Bizjak PR bootstrap/82306 * config/i386/i386.opt (mprefer-avx256): Use ix86_target_flags variable. * config/i386/i386.c (ix86_target_string): Move

Re: [GCC][PATCH][TESTSUITE][ARM][COMMITTED] Invert check to misalign in vect_hw_misalign (PR 78421)

On 21 September 2017 at 16:48, Tamar Christina wrote: > Hi All, > > Commit r244796 changed vect_hw_misalign for arm to check against > arm_vect_no_misalign. However vect_hw_misalign is supposed to check if > a target supports misalign access, while arm_vect_no_misalign

Re: [Patch, Fortran] PR 82143: add a -fdefault-real-16 flag

2017-09-22 21:32 GMT+02:00 Janus Weil : > 2017-09-22 11:44 GMT+02:00 Janus Weil : >> 2017-09-22 9:11 GMT+02:00 Janne Blomqvist : >>> And since the standard requires that double precision variables are >>> twice as big as reals, in

[patch, fortran] Warn about out-of-bounds access with DO subscripts

Hello world, here is an update and a ping for my patch at https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01104.html This patch warns unconditionally for REAL A(3) DO I=1,4 A(I) = 42. END DO while only warning conditionally, dependent on a new flag, for when the statement containing

[PATCH try 3] [i386,testsuite,libgcc] Fix build breakage on Mac and test FAILS on Solaris caused by PR82196 patch

OK, hopefully I've gotten everything cleaned up.  I should note that because I'm now including both auto-target.h from libgcc (for HAVE_AS_AVX) and auto-host.h from gcc (HAVE_GAS_HIDDEN) that there are several warnings for redefined macros, but I plan on fixing that once this is resolved.  Thanks

Re: [PATCH try 2] [i386,testsuite,libgcc] Fix build breakage on Mac and test FAILS on Solaris caused by PR82196 patch

On Sat, Sep 23, 2017 at 11:03 AM, Daniel Santos wrote: > On 09/22/2017 06:50 AM, Uros Bizjak wrote: >> On Fri, Sep 22, 2017 at 1:27 PM, Uros Bizjak wrote: >>> On Fri, Sep 22, 2017 at 12:28 PM, Daniel Santos >>> wrote: On

Allow vector CONSTs

This patch allows (const ...) wrappers to be used for rtx vector constants, as an alternative to const_vector. This is useful for SVE, where the number of elements isn't known until runtime. It could also be useful in future for fixed-length vectors, to reduce the amount of memory needed to

Re: [PATCH try 2] [i386,testsuite,libgcc] Fix build breakage on Mac and test FAILS on Solaris caused by PR82196 patch

On 09/22/2017 06:50 AM, Uros Bizjak wrote: > On Fri, Sep 22, 2017 at 1:27 PM, Uros Bizjak wrote: >> On Fri, Sep 22, 2017 at 12:28 PM, Daniel Santos >> wrote: >>> On 09/22/2017 03:28 AM, Rainer Orth wrote: Hi Daniel, > On 09/22/2017 02:18

Re: [PATCH try 2] [i386,testsuite,libgcc] Fix build breakage on Mac and test FAILS on Solaris caused by PR82196 patch

On 09/22/2017 05:33 AM, Jakub Jelinek wrote: > On Fri, Sep 22, 2017 at 05:28:00AM -0500, Daniel Santos wrote: >> +/* If the assembler doesn't support AVX then directly emit machine code >> + for the instructions above directly. */ > Just a nit: too many "directly" words. > > Jakub Well I

Add more vec_duplicate simplifications

This patch adds a vec_duplicate_p helper that tests for constant or non-constant vector duplicates. Together with the existing const_vec_duplicate_p, this complements the gen_vec_duplicate and gen_const_vec_duplicate added by a previous patch. The patch uses the new routines to add more rtx

Add gen_(const_)vec_duplicate helpers

This patch adds helper functions for generating constant and non-constant vector duplicates. These routines help with SVE because it is then easier to use: (const:M (vec_duplicate:M X)) for a broadcast of X, even if the number of elements in M isn't known at compile time. It also makes it

[PATCH] libstdc++: istreambuf_iterator keep attached streambuf

istreambuf_iterator should not forget about attached streambuf when it reach EOF. Checks in debug mode has no infuence more on character extraction in istreambuf_iterator increment operators. In this aspect behaviour in debug and non-debug mode is similar now. Test for detached srteambuf in