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1 /* Target architectures which have been found to produce the expected RTL
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2 (neg:DI (ge:DI ...)) when compiling for LP64. */
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3 /* { dg-do compile { target aarch64*-*-* arm*-*-* i?86-*-* ia64-*-* powerpc*-*-* sparc*-*-* x86_64-*-* } } */
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4 /* { dg-require-effective-target lp64 } */
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5 /* { dg-options "-O2 -fdump-rtl-combine-all" } */
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6
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7 typedef long long int int64_t;
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8
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9 int64_t
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10 foo (int64_t a)
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11 {
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12 return (~a) >> 63;
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13 }
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14
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15 /* The combine phase will try to combine not & ashiftrt, and
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16 combine_simplify_rtx should transform (ashiftrt (not x) 63)
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17 to (not (ashiftrt x 63)) and then to (neg (ge x 0)). We look for
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18 the *attempt* to match this RTL pattern, regardless of whether an
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19 actual insn may be found on the platform. */
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20 /* { dg-final { scan-rtl-dump "\\(neg:DI \\(ge:DI" "combine" } } */
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