http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59046
Bug ID: 59046
Summary: [4.8.x REGRESSION] corei7: L1 + L2 cache size not
correct
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: gnu.org at marc dot ngoe.de
Issuing the following command gives incorrect cache sizes with gcc 4.8.1:
gcc -march=native -E -v - </dev/null 2>&1 | grep c1
17.05.2013 gcc-4.7.3
/usr/libexec/gcc/i686-pc-linux-gnu/4.7.3/cc1 -E -quiet -v -
-march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm
-mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx
-mno-avx2 -msse4.2 -msse4 .1 -mno-lzcnt -mno-rdrnd -mno-f16c -mno-fsgsbase
--param l1-cache-size=32 --param l1-cache-line-size=64 --param
l2-cache-size=4096 -mtune=corei7
20 #
06.11.2013 gcc-4.8.1-r1
/usr/libexec/gcc/i686-pc-linux-gnu/4.8.1/cc1 -E -quiet -v -
-march=corei7 -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm
-mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mno-avx
-mno-avx2 -msse4.2 -msse4 .1 -mno-lzcnt -mno-rtm -mno-hle -mno-rdrnd
-mno-f16c -mno-fsgsbase -mno-rdseed -mno-prfchw -mno-adx -mfxsr -mno-xsave
-mno-xsaveopt --param l1-cache-size=0 --param l1-cache-line-size=0 --param
l2-cache-size=256 -mtune=corei7
According to a comment in #57657 this should have been fixed in May 15th, but
the 4.8.1 release dated May 31 still has the bug. Is this fixed in 4.8.2 or
re-introduced?
