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| author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2014-10-30 09:35:42 +0000 |
|---|---|---|
| committer | <> | 2015-01-09 11:51:27 +0000 |
| commit | c27a97d04853380f1e80525391b3f0d156ed4c84 (patch) | |
| tree | 68ffaade7c605bc80cffa18360799c98a810976f /gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c | |
| parent | 6af3fdec2262dd94954acc5e426ef71cbd4521d3 (diff) | |
| download | gcc-tarball-c27a97d04853380f1e80525391b3f0d156ed4c84.tar.gz | |
Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-4.9.2.tar.bz2.gcc-4.9.2
Diffstat (limited to 'gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c b/gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c new file mode 100644 index 0000000000..ccc74e7b1a --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/mulsi3_highpart-2.c @@ -0,0 +1,30 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -mARC700 --save-temps -mno-mpy" } */ + +#include <stdlib.h> + +/* Hide value propagation from the optimizers. */ +static int +id (int i) +{ + asm ("": "+Xr" (i)); + return i; +} + +static int +mulhigh (unsigned a, unsigned b) +{ + return (unsigned long long) a * b >> 32; +} + +int +main (void) +{ + if (mulhigh (id (0x12345678), id (0x90abcdef)) != 0xa49a83e) + abort (); + return 0; +} + +/* { dg-final { scan-assembler-not "mpyhu\[ \t\]" } } */ +/* { dg-final { scan-assembler-not "@__muldi3" } } */ +/* { dg-final { scan-assembler "@__umulsi3_highpart" } } */ |