---
gas-preprocessor.pl | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gas-preprocessor.pl b/gas-preprocessor.pl
index ab4294c..b597a0e 100755
--- a/gas-preprocessor.pl
+++ b/gas-preprocessor.pl
@@ -788,6 +788,14 @@ sub handle_serialized_line {
if ($line =~
/^\s*(s|u)xtl(2)?\s+(v[0-3]?\d\.[248][hsdHSD])\s*,\s*(v[0-3]?\d\.(?:2|4|8|16)[bhsBHS])\b\s*$/)
{
$line = " $1shll$2 $3, $4, #0\n";
}
+ # clang 3.4 does not automatically use shifted immediates in add/sub
+ if ($as_type eq "clang" and
+ $line =~ /^(\s*(?:add|sub)s?) ([^#l]+)#([\d\+\-\*\/ <>]+)\s*$/) {
+ my $imm = eval $3;
+ if ($imm > 4095 and not ($imm & 4095)) {
+ $line = "$1 $2#" . ($imm >> 12) . ", lsl #12\n";
+ }
+ }
if ($ENV{GASPP_FIX_XCODE5}) {
if ($line =~ /^\s*bsl\b/) {
$line =~ s/\b(bsl)(\s+v[0-3]?\d\.(\w+))\b/$1.$3$2/;
--
1.9.3
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