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111
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1 /* { dg-do compile } */
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131
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2 /* { dg-require-effective-target bswap } */
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111
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3 /* { dg-require-effective-target stdint_types } */
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4 /* { dg-options "-O2 -fdump-tree-bswap" } */
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5 /* { dg-additional-options "-march=z900" { target s390-*-* } } */
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6
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7 typedef int SItype __attribute__ ((mode (SI)));
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8 typedef int DItype __attribute__ ((mode (DI)));
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9
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10 /* This variant comes from optimize-bswapsi-1.c swap32_d. It detects a missing
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11 cast of MARKER_BYTE_UNKNOWN to uint64_t for the CASE_CONVERT case for host
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12 architecture where a left shift with too big an operand gives zero. */
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13
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14 SItype
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15 swap32 (SItype in)
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16 {
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17 return (((in >> 0) & 0xFF) << 24)
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18 | (((in >> 8) & 0xFF) << 16)
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19 | (((((DItype) in) & 0xFF00FF0000llu) >> 16) << 8)
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20 | (((in >> 24) & 0xFF) << 0);
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21 }
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22
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23 /* { dg-final { scan-tree-dump-not "32 bit bswap implementation found at" "bswap" } } */
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