From 8f23907f3e4c9e40602be0eeebce8c7ea7a9fa3d Mon Sep 17 00:00:00 2001
From: Mans Rullgard <mans@mansr.com>
Date: Fri, 5 Oct 2012 01:30:28 +0100
Subject: [PATCH] build: add -Mdse to PGI optimisation flags
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>
---
configure | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure b/configure
index 34680d47840..d4fcd1f5331 100755
--- a/configure
+++ b/configure
@@ -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"
--
GitLab