Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 512614 - sys-devel/gcc-4.8.2 CFLAGS=-march=bdver3 - .../work/build/gcc/include/fma4intrin.h:32:3: error: #error "FMA4 instruction set not enabled"
Summary: sys-devel/gcc-4.8.2 CFLAGS=-march=bdver3 - .../work/build/gcc/include/fma4int...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: AMD64 Linux
: Normal normal
Assignee: Gentoo Toolchain Maintainers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-06-06 20:08 UTC by j.l.
Modified: 2014-06-16 23:56 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

Attachments
emerge --info + failed build log (fma4-details.zip,179.50 KB, application/zip)
2014-06-06 20:08 UTC, j.l. 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description j.l. 2014-06-06 20:08:35 UTC 
Created attachment 378392 [details]
emerge --info + failed build log

sys-devel/gcc-4.8.2 with CFLAGS="-O2 -march=bdver3 -pipe" fails to compile some packages (for example sys-devel/gcc itself, build log attached).
After appending "-mno-fma4" it works as supposed.
Tested on Kaveri A10-7700.
Comment 1 Ryan Hill (RETIRED) gentoo-dev 2014-06-10 05:21:24 UTC 
This is fixed in 4.8.3.

https://gcc.gnu.org/ml/gcc-patches/2013-10/msg01152.html
Comment 2 Ryan Hill (RETIRED) gentoo-dev 2014-06-16 02:07:10 UTC 
Fixed.