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optimize-bswapsi-1.c (swap32_e): New bswap test.

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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
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Thomas Preud'homme 2014-10-29 10:33:46 +00:00 committed by Thomas Preud'homme
parent dab67d2ca2
commit a3cdf7c0ca
3 changed files with 44 additions and 1 deletions
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5
gcc/testsuite/ChangeLog
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@ -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> 2014-10-20 Alexander Ivchenko <alexander.ivchenko@intel.com>
Maxim Kuznetsov <maxim.kuznetsov@intel.com> Maxim Kuznetsov <maxim.kuznetsov@intel.com>
Anna Tikhonova <anna.tikhonova@intel.com> Anna Tikhonova <anna.tikhonova@intel.com>

16
gcc/testsuite/gcc.dg/optimize-bswapsi-1.c
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@ -64,5 +64,19 @@ swap32_d (SItype in)
| (((in >> 24) & 0xFF) << 0); | (((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" } } */ /* { dg-final { cleanup-tree-dump "bswap" } } */

24
gcc/testsuite/gcc.dg/optimize-bswapsi-3.c Normal file
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@ -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" } } */