| Summary: | dev-debug/valgrind-3.22.0-r2 compiling test fail with lto -Werror=strict-aliasing | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Arniii <lg3dx6fd> |
| Component: | Current packages | Assignee: | Gentoo Toolchain Maintainers <toolchain> |
| Status: | UNCONFIRMED --- | ||
| Severity: | normal | CC: | lg3dx6fd |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
build.log.lz // to read : ` lzip -dc ./build.log.lz | less `
environment // profile default/linux/amd64/17.1/desktop/plasma gcc O3 pipe march=native(verbose) lto graphite ggdb3 |
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Created attachment 894943 [details]
build.log.lz // to read : ` lzip -dc ./build.log.lz | less `
Created attachment 894944 [details]
environment // profile default/linux/amd64/17.1/desktop/plasma gcc O3 pipe march=native(verbose) lto graphite ggdb3
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from build log: ``` x86_64-pc-linux-gnu-gcc -Winline -Wall -Wshadow -Wno-long-long -g -fno-stack-protector -m32 -mmmx -msse -O3 -pipe -march=alderlake -mabm -mno-cldemote -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=48 --param=l2-cache-size=30720 -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -fgraphite-identity -floop-interchange -floop-strip-mine -floop-nest-optimize -ggdb3 -frecord-gcc-switches -fno-stack-protector -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,notext -o fprem fprem.o more_x86_fp.c: In function ‘test_fcvt’: more_x86_fp.c:98:28: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing] 98 | printf("a=%016llx\n", *(long long *)&a); | ^~~~~~~~~~~~~~~ more_x86_fp.c:99:34: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing] 99 | printf("la=%016llx %04x\n", *(long long *)&la, | ^~ ```