https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64236
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |msebor at gcc dot gnu.org
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
I reproduced it with today's trunk configured for powerpc-linux-gnuspe but I
don't think it has anything to do with powerpc. It looks like GCC simply takes
the last alignment instead of the strictest one.
$ cat u.cpp && /build/gcc-trunk-ppc/gcc/xgcc -B/build/gcc-trunk-ppc/gcc -c
-std=c++11 -xc++ -Wall -S u.cpp && cat u.s
struct alignas (32) alignas (8) A1 { int i; } a1 = { 0 };
struct alignas (8) alignas (32) A2 { int i; } a2 = { 0 };
struct __attribute__ ((aligned (32), aligned (8))) B1 { int i; } b1 = { 0 };
struct __attribute__ ((aligned (8), aligned (32))) B2 { int i; } b2 = { 0 };
.file "u.cpp"
.globl a1
.section ".sbss","aw",@nobits
.align 3
a1:
.zero 8
.size a1, 8
.type a1, @object
.globl a2
.lcomm a2,32,32
.type a2, @object
.globl b1
.align 3
b1:
.zero 8
.size b1, 8
.type b1, @object
.globl b2
.lcomm b2,32,32
.type b2, @object
.ident "GCC: (GNU) 5.0.0 20150225 (experimental)"
.section .note.GNU-stack,"",@progbits
