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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-03-08 13:56:08 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-03-08 13:56:08 +0000 |
commit | a24cfb086163ab359735392340acfe03e133be64 (patch) | |
tree | 1d878c6fa08338b9955ca79b36b6267bcf6bfbad /test/regression/builtins.c | |
parent | c24a652789e15b33153c1d90c6869eb6e6e28040 (diff) | |
download | compcert-a24cfb086163ab359735392340acfe03e133be64.tar.gz compcert-a24cfb086163ab359735392340acfe03e133be64.zip |
Handling of volatile accesses through builtin functions.
Added support for processor-specific builtin functions.
Added some PowerPC instructions as builtins.
Updated #pragma section handling.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1285 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'test/regression/builtins.c')
-rw-r--r-- | test/regression/builtins.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/regression/builtins.c b/test/regression/builtins.c new file mode 100644 index 00000000..b13578a4 --- /dev/null +++ b/test/regression/builtins.c @@ -0,0 +1,50 @@ +/* Fun with PowerPC builtins */ + +#include <stdio.h> + +#ifdef __ppc__ + +int main(int argc, char ** argv) +{ + int x = 0x12345678; + unsigned int y = 0xDEADBEEF; + + printf("mulhw(%x, %x) = %x\n", x, y, __builtin_mulhw(x, y)); + printf("mulhwu(%x, %x) = %x\n", x, y, __builtin_mulhwu(x, y)); + printf("cntlzw(%x) = %d\n", x, __builtin_cntlzw(x)); + + double a = 3.14159; + double b = 2.718; + double c = 1.414; + + printf("fmadd(%f, %f, %f) = %f\n", a, b, c, __builtin_fmadd(a, b, c)); + printf("fmsub(%f, %f, %f) = %f\n", a, b, c, __builtin_fmsub(a, b, c)); + printf("fabs(%f) = %f\n", a, __builtin_fabs(a)); + printf("fabs(%f) = %f\n", -a, __builtin_fabs(-a)); + printf("fsqrt(%f) = %f\n", a, __builtin_fsqrt(a)); + printf("frsqrte(%f) = %f\n", a, __builtin_frsqrte(a)); + printf("fres(%f) = %f\n", a, __builtin_fres(a)); + printf("fsel(%f, %f, %f) = %f\n", a, b, c, __builtin_fsel(a, b, c)); + printf("fsel(%f, %f, %f) = %f\n", -a, b, c, __builtin_fsel(-a, b, c)); + + unsigned short s = 0x1234; + printf ("read_16_rev = %x\n", __builtin_read_int16_reversed(&s)); + printf ("read_32_rev = %x\n", __builtin_read_int32_reversed(&y)); + __builtin_write_int16_reversed(&s, 0x789A); + printf ("after write_16_rev: %x\n", s); + __builtin_write_int32_reversed(&y, 0x12345678); + printf ("after write_32_rev: %x\n", y); + + __builtin_eieio(); + __builtin_sync(); + __builtin_isync(); + + return 0; +} + +#endif + + + + + |