https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115208
Bug ID: 115208
Summary: [15 Regression] Memory consumption get extremely high
after r15-809
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: haochen.jiang at intel dot com
Target Milestone: ---
I currently got some testcase fail on i686 target.
New failures:
FAIL: gcc.target/i386/avx-1.c (test for excess errors)
FAIL: gcc.target/i386/sse-13.c (test for excess errors)
FAIL: gcc.target/i386/sse-23.c (test for excess errors)
FAIL: gcc.target/i386/sse-24.c (test for excess errors)
FAIL: gcc.target/i386/sse-25.c (test for excess errors)
FAIL: gcc.target/i386/sse-26.c (test for excess errors)
>From my investigation, it happened after the commit series r15-797 to r15-809.
After those commits, the memory consumption got very high.
I ran with:
make check-gcc RUNTESTFLAGS="i386.exp=avx-1.c --target_board='unix{-m32}'"
Before those commits, the memory usage:
Memory usage summary: heap total: 245591, heap peak: 205651, stack peak: 13824
total calls total memory failed calls
malloc| 402 238998 0
realloc| 14 5416 0 (nomove:7, dec:0, free:0)
calloc| 6 1177 0
free| 224 57705
After those commits, the memory usage:
Memory usage summary: heap total: 17691252434, heap peak: 7691866921, stack
peak: 51056
total calls total memory failed calls
malloc| 69614075 15426859093 0
realloc| 260731 17538362 0 (nomove:88951, dec:19349,
free:0)
calloc| 11132073 2246854979 0
free| 81105599 9997315310
Since i686 target gets very limited memory, it crashed those targets.
