Re: Question regarding constraint usage within inline asm

2019-02-19 Thread Alan Modra
On Mon, Feb 18, 2019 at 01:13:31PM -0600, Peter Bergner wrote: > I have a question about constraint usage in inline asm when we have > an early clobber output operand. The test case is from PR89313 and > looks like the code below (I'm using "r3" for the reg on ppc, but > you could also use "rax" o

Re: a small spelling mistake

2019-02-19 Thread Jonathan Wakely
On Tue, 19 Feb 2019 at 17:49, xinxin wrote: > > I found a small spelling mistake in gcc source tree /gcc/config/gcn/gcn.c > 5948 line, > > > output_operand_lossage ("invlaid fp constant"); > > > “invlaid” sould be "invaild". Thanks! Fixed by the attached patch, committed to trunk as obvious. com

a small spelling mistake

2019-02-19 Thread xinxin
I found a small spelling mistake in gcc source tree /gcc/config/gcn/gcn.c 5948 line, output_operand_lossage ("invlaid fp constant"); “invlaid” sould be "invaild".

Re: Gcc profile questions

2019-02-19 Thread Richard Biener
On February 19, 2019 5:19:11 PM GMT+01:00, Qing Zhao wrote: >Hi, > >Suppose we have a program called foo which is built with gcc >-fprofile-generate, Now when foo is executed a bunch of .gcda files >are created. > >What happens when foo is executed more than once. Are the .gcda files >updated

Gcc profile questions

2019-02-19 Thread Qing Zhao
Hi, Suppose we have a program called foo which is built with gcc -fprofile-generate, Now when foo is executed a bunch of .gcda files are created. What happens when foo is executed more than once. Are the .gcda files updated with each execution? Or are the .gcda files overwritten with new

Should invalid __RTL testcase "startwith" passes emit a warning?

2019-02-19 Thread Matthew Malcomson
Hi there, I'd like to make handling of the __RTL function testcases where the startwith pass name is either invalid, not used for that optimisation level, or non-existant more understandable. Currently a problem with the pass name leaves around state that causes the compiler to ICE on other fu

Contributing p0355 to libstdc++-v3

2019-02-19 Thread David Brown
Hello GCC, My name is David Brown and I am interested in contributing to libstdc++-v3. Specifically, I would like to begin implementing https://wg21.link/p0355r7 having used its reference implementation in several projects already. I am aware that I will need to fill out some FSF forms for legal

Re: [GSOC] Simple things to play with (Was: variations in testsuite results)

2019-02-19 Thread Martin Jambor
Hi Siddhartha, On Sat, Feb 02 2019, Siddhartha Sen wrote: > Hey Marting, > I have disabled the boottrap and am able to bootstrap > the compiler on my own. I have done as you said and have experimented a bit > with gdb as well. I was facing trivial problems but nothing that the

About BZ#87210 [RFE] To initialize automatic stack variables

2019-02-19 Thread P J P
Hello,   -> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87210 This RFE is about providing gcc option(s) to eliminate information leakage issues from programs. Information leakage via uninitialised memory has beena chronic/recurring issue across all software. They are found quite often andmay le