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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c b/gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c new file mode 100644 index 000000000..03cccdb65 --- /dev/null +++ b/gcc/testsuite/gcc.target/arm/thumb2-mul-speed.c @@ -0,0 +1,27 @@ +/* Do not use 16-bit multiply instructions in Thumb-2 mode when + optimizing for speed. */ +/* { dg-options "-mthumb -O2" } */ +/* { dg-require-effective-target arm_thumb2_ok } */ +/* { dg-final { scan-assembler-not "muls" } } */ + +int f(int i, int j) +{ + return i * j; +} + +int x; + +void g(int i, int j) +{ + if (i * j < 0) + x = 1; +} + +int h(int i, int j) +{ + i = i * j; + if (i < 0) + x = 1; + return i; +} + |