[PATCH, C++, testsuite] Require alias support for a test.

Hi, The test for pr84497 uses a facility that requires alias support from the target, and therefore fails on targets without. Fixed by adding a suitable dg-require statement. Tested on x86_64-linux-gnu, x86_64-darwin16, applied to mainline as obvious, thanks Iain 2019-05-31 Iain Sandoe

[PATCH, Darwin, X86, testsuite] Adjust tests for Darwin's align syntax.

Darwin has a .align taking a power of 2 by default, so that some tests in i386.exp expecting a byte count are failing, likewise there is a white-space difference in the output in one case, and the perennial missing __USER_LABEL_PREFIX__. fixed thus. tested on x86_64-darwin16 and

[PATCH, Darwin, X86] We have .p2align, so declare its use.

.p2align support is present in all x86 assemblers on released Darwin systems. This “fixes” most of the remaining alignment-related fails in i386.exp tested on x86_64-darwin16, x86_64-linux-gnu, applied to mainline, thanks Iain gcc/ 2019-05-31 Iain Sandoe * config/i386/darwin.h

Re: [PATCH V2] A jump threading opportunity for condition branch

On Thu, 30 May 2019, Jeff Law wrote: > On 5/30/19 9:03 AM, Jiufu Guo wrote: > > Jeff Law writes: > > > >> On 5/29/19 6:36 AM, Richard Biener wrote: > >>> On Tue, 28 May 2019, Jiufu Guo wrote: > >>> > Hi, > > This patch implements a new opportunity of jump threading for PR77820. >

Re: [PATCH] A jump threading opportunity for condition branch

On Thu, 30 May 2019, Jeff Law wrote: > On 5/30/19 12:41 AM, Richard Biener wrote: > > On May 29, 2019 10:18:01 PM GMT+02:00, Jeff Law wrote: > >> On 5/23/19 6:11 AM, Richard Biener wrote: > >>> On Thu, 23 May 2019, Jiufu Guo wrote: > >>> > Hi, > > Richard Biener writes: > >

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