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build: add -Mdse to PGI optimisation flags

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Enable dead store elimination.  The last few releases work no worse
with this flag than without.  Older versions failed to build some
source files when using this flag.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-10-05 01:30:28 +01:00
parent c9b10cc4db
commit 8f23907f3e
1 changed files with 1 additions and 1 deletions
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2
configure vendored
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@ -2329,7 +2329,7 @@ probe_cc(){
elif $_cc -V 2>&1 | grep -q Portland; then
_type=pgi
_ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
opt_common='-alias=ansi -Mlre -Mpre'
opt_common='-alias=ansi -Mdse -Mlre -Mpre'
_cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
_cflags_size="-O2 -Munroll=c:1 $opt_common"
_cflags_noopt="-O1"