Kevin O'Connor | 03f630e | 2009-03-26 20:45:36 -0400 | [diff] [blame^] | 1 | #!/bin/sh |
| 2 | # Script to test if gcc's -combine option works properly. |
| 3 | |
| 4 | mkdir -p out |
| 5 | TMPFILE1=out/tmp_testcompile1.c |
| 6 | TMPFILE1o=out/tmp_testcompile1.o |
| 7 | TMPFILE2=out/tmp_testcompile2.c |
| 8 | TMPFILE2o=out/tmp_testcompile2.o |
| 9 | TMPFILE3o=out/tmp_testcompile3.o |
| 10 | |
| 11 | # Test for "-fwhole-program" |
| 12 | gcc -fwhole-program -S -o /dev/null -xc /dev/null > /dev/null 2>&1 |
| 13 | if [ $? -ne 0 ]; then |
| 14 | echo "This version of gcc does not support -fwhole-program." > /dev/fd/2 |
| 15 | echo "Please upgrade to gcc v4.1 or later" > /dev/fd/2 |
| 16 | echo -1 |
| 17 | exit -1 |
| 18 | fi |
| 19 | |
| 20 | # Test if "visible" functions are marked global. |
| 21 | cat - > $TMPFILE1 <<EOF |
| 22 | void __attribute__((externally_visible)) t1() { } |
| 23 | EOF |
| 24 | $CC -c -fwhole-program $TMPFILE1 -o $TMPFILE1o > /dev/null 2>&1 |
| 25 | cat - > $TMPFILE2 <<EOF |
| 26 | void t1(); |
| 27 | void __attribute__((externally_visible)) main() { t1(); } |
| 28 | EOF |
| 29 | $CC -c -fwhole-program $TMPFILE2 -o $TMPFILE2o > /dev/null 2>&1 |
| 30 | $CC $TMPFILE1o $TMPFILE2o -o $TMPFILE3o > /dev/null 2>&1 |
| 31 | if [ $? -ne 0 ]; then |
| 32 | echo " Working around non-global functions in -fwhole-program" > /dev/fd/2 |
| 33 | fi |
| 34 | |
| 35 | # Test if "-combine" works |
| 36 | mkdir -p out |
| 37 | cat - > $TMPFILE1 <<EOF |
| 38 | struct ts { union { int u1; struct { int u2; }; }; }; |
| 39 | void t1(struct ts *r); |
| 40 | EOF |
| 41 | $CC -c -fwhole-program -combine $TMPFILE1 $TMPFILE1 -o $TMPFILE1o > /dev/null 2>&1 |
| 42 | if [ $? -eq 0 ]; then |
| 43 | #echo " Setting AVOIDCOMBINE=0" > /dev/fd/2 |
| 44 | echo 0 |
| 45 | else |
| 46 | echo " Enabling AVOIDCOMBINE=1" > /dev/fd/2 |
| 47 | echo 1 |
| 48 | fi |
| 49 | |
| 50 | rm -f $TMPFILE1 $TMPFILE1o $TMPFILE2 $TMPFILE2o $TMPFILE3o |