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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fstack-clash-protection -fdump-rtl-pro_and_epilogue -fno-optimize-sibling-calls --param stack-clash-protection-probe-interval=12 --param stack-clash-protection-guard-size=12" } */
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3 /* { dg-require-effective-target supports_stack_clash_protection } */
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4
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5 int f (int *);
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6
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7 int
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8 g (int a)
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9 {
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10 return f (&a);
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11 }
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12
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13 int f1 (void);
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14 int f2 (int);
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15
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16 int
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17 f3 (void)
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18 {
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19 return f2 (f1 ());
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20 }
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21
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22
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23 /* If we have caller implicit probes, then we should not need probes in either callee.
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24 Else callees may need probes, particularly if non-leaf functions require a
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25 frame/frame pointer. */
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26 /* { dg-final { scan-rtl-dump-times "Stack clash no probe" 2 "pro_and_epilogue" { target caller_implicit_probes } } } */
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27 /* { dg-final { scan-rtl-dump-times "Stack clash inline probe" 1 "pro_and_epilogue" { target { ! caller_implicit_probes } } } } */
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28 /* { dg-final { scan-rtl-dump-times "Stack clash no probe" 1 "pro_and_epilogue" { target { ! caller_implicit_probes } } } } */
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29
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30 /* Neither of these functions are a nonreturn function. */
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31 /* { dg-final { scan-rtl-dump-times "Stack clash not noreturn" 2 "pro_and_epilogue" } } */
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32
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33 /* If the callee realigns the stack or has a mandatory frame, then both functions
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34 have a residual allocation. Else just g() has a residual allocation. */
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35 /* { dg-final { scan-rtl-dump-times "Stack clash residual allocation in prologue" 2 "pro_and_epilogue" } } */
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36
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37
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38 /* If the target has frame pointers for non-leafs, then both functions will
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39 need a frame pointer. Otherwise neither should. */
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40 /* { dg-final { scan-rtl-dump-times "Stack clash no frame pointer needed" 2 "pro_and_epilogue" { target { ! frame_pointer_for_non_leaf } } } } */
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41 /* { dg-final { scan-rtl-dump-times "Stack clash frame pointer needed" 2 "pro_and_epilogue" { target { frame_pointer_for_non_leaf } } } } */
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131
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42 /* { dg-final { scan-rtl-dump-times "Stack clash no probe small stack adjustment in prologue" 2 "pro_and_epilogue" { target { aarch64*-*-* } } } } */
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