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| author | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2014-10-29 10:33:46 +0000 |
|---|---|---|
| committer | Thomas Preud'homme <thopre01@gcc.gnu.org> | 2014-10-29 10:33:46 +0000 |
| commit | a3cdf7c0cadca64ff0efa9c56ff1ed50fee70575 (patch) | |
| tree | 6c067516d9fd680da15ee82b952475abeeb9124d /gcc | |
| parent | dab67d2ca2788745393a57b54ed59afb7585602c (diff) | |
| download | gcc-a3cdf7c0cadca64ff0efa9c56ff1ed50fee70575.zip gcc-a3cdf7c0cadca64ff0efa9c56ff1ed50fee70575.tar.gz gcc-a3cdf7c0cadca64ff0efa9c56ff1ed50fee70575.tar.bz2 | |
optimize-bswapsi-1.c (swap32_e): New bswap test.
2014-10-29 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/testsuite/
* gcc.dg/optimize-bswapsi-1.c (swap32_e): New bswap test.
* gcc.dg/optimize-bswapsi-3.c: New test.
From-SVN: r216830
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/optimize-bswapsi-1.c | 16 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/optimize-bswapsi-3.c | 24 |
3 files changed, 44 insertions, 1 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index e8ec94a..52a9e54 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2014-10-29 Thomas Preud'homme <thomas.preudhomme@arm.com> + + * gcc.dg/optimize-bswapsi-1.c (swap32_e): New bswap test. + * gcc.dg/optimize-bswapsi-3.c: New test. + 2014-10-20 Alexander Ivchenko <alexander.ivchenko@intel.com> Maxim Kuznetsov <maxim.kuznetsov@intel.com> Anna Tikhonova <anna.tikhonova@intel.com> diff --git a/gcc/testsuite/gcc.dg/optimize-bswapsi-1.c b/gcc/testsuite/gcc.dg/optimize-bswapsi-1.c index 580e6e0..cfde218 100644 --- a/gcc/testsuite/gcc.dg/optimize-bswapsi-1.c +++ b/gcc/testsuite/gcc.dg/optimize-bswapsi-1.c @@ -64,5 +64,19 @@ swap32_d (SItype in) | (((in >> 24) & 0xFF) << 0); } -/* { dg-final { scan-tree-dump-times "32 bit bswap implementation found at" 4 "bswap" } } */ +/* This variant is adapted from swap32_d above. It detects missing cast of + MARKER_BYTE_UNKNOWN to uint64_t for the CASE_CONVERT case for host + architecture where a left shift with too big an operand mask its high + bits. */ + +SItype +swap32_e (SItype in) +{ + return (((in >> 0) & 0xFF) << 24) + | (((in >> 8) & 0xFF) << 16) + | (((((int64_t) in) & 0xFF0000FF0000) >> 16) << 8) + | (((in >> 24) & 0xFF) << 0); +} + +/* { dg-final { scan-tree-dump-times "32 bit bswap implementation found at" 5 "bswap" } } */ /* { dg-final { cleanup-tree-dump "bswap" } } */ diff --git a/gcc/testsuite/gcc.dg/optimize-bswapsi-3.c b/gcc/testsuite/gcc.dg/optimize-bswapsi-3.c new file mode 100644 index 0000000..79f2147 --- /dev/null +++ b/gcc/testsuite/gcc.dg/optimize-bswapsi-3.c @@ -0,0 +1,24 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target bswap32 } */ +/* { dg-require-effective-target stdint_types } */ +/* { dg-options "-O2 -fdump-tree-bswap" } */ +/* { dg-additional-options "-march=z900" { target s390-*-* } } */ + +typedef int SItype __attribute__ ((mode (SI))); +typedef int DItype __attribute__ ((mode (DI))); + +/* This variant comes from optimize-bswapsi-1.c swap32_d. It detects a missing + cast of MARKER_BYTE_UNKNOWN to uint64_t for the CASE_CONVERT case for host + architecture where a left shift with too big an operand gives zero. */ + +SItype +swap32 (SItype in) +{ + return (((in >> 0) & 0xFF) << 24) + | (((in >> 8) & 0xFF) << 16) + | (((((DItype) in) & 0xFF00FF0000llu) >> 16) << 8) + | (((in >> 24) & 0xFF) << 0); +} + +/* { dg-final { scan-tree-dump-not "32 bit bswap implementation found at" "bswap" } } */ +/* { dg-final { cleanup-tree-dump "bswap" } } */ |