The -mno-vrsave switch as well as the old -mvrsave=no is ignored on 64bit
target.
Testcase is an empty file.
Results with powerpc64-unknown-linux-gnu-gcc -o a.s -c b.c -maltivec
-mno-vrsave -S -fverbose-asm -m64 into:
# rs6000/powerpc options: -msdata=none
.section ".toc","aw"
.section ".text"
# GNU C version 4.1.2 (Gentoo 4.1.2) (powerpc64-unknown-linux-gnu)
# compiled by GNU C version 4.1.1 (Gentoo 4.1.1-r3).
# GGC heuristics: --param ggc-min-expand=44 --param ggc-min-heapsize=27672
# options passed: -D__unix__ -D__gnu_linux__ -D__linux__ -Dunix -D__unix
# -Dlinux -D__linux -Asystem=linux -Asystem=unix -Asystem=posix
# -msecure-plt -maltivec -mno-vrsave -m64 -auxbase-strip -fverbose-asm
# options enabled: -falign-loops -fargument-alias -fbranch-count-reg
# -fcommon -fearly-inlining -feliminate-unused-debug-types -ffunction-cse
# -fgcse-lm -fident -finline-functions-called-once -fivopts
# -fkeep-static-consts -fleading-underscore -floop-optimize2 -fmath-errno
# -fpeephole -freg-struct-return -fsched-interblock -fsched-spec
# -fsched-stalled-insns-dep -fshow-column -fsplit-ivs-in-unroller
# -ftrapping-math -ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize
# -ftree-vect-loop-version -fverbose-asm -fzero-initialized-in-bss -m64
# -maix-struct-return -maltivec -mbig -mbig-endian -mfp-in-toc
# -mfused-madd -mhard-float -mnew-mnemonics -mpowerpc -mpowerpc-gfxopt
# -mpowerpc64 -msched-prolog -msecure-plt -mupdate -mvrsave
# Compiler executable checksum: 9f98a4867284f64c17c8db6425da4d5f
.ident "GCC: (GNU) 4.1.2 (Gentoo 4.1.2)"
Somehow -mvrsave comes into "option enabled"
-m32 does not pass this.
--
Summary: -mno-vrsave ignored on ppc64
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: gcc at breakpoint dot cc
GCC build triplet: powerpc64-linux-gnu
GCC host triplet: powerpc64-linux-gnu
GCC target triplet: powerpc64-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31635
