54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
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/* { dg-options "-mgeneral-regs-only" } */
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extern void abort ();
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extern void exit (int);
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#ifndef __thumb__
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/* There used to be a couple of bugs in the ARM's prologue and epilogue
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generation for ISR routines. The wrong epilogue instruction would be
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generated to restore the IP register if it had to be pushed onto the
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stack, and the wrong offset was being computed for local variables if
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r0 - r3 had to be saved. This tests for both of these cases. */
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int z = 9;
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int
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bar (void)
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{
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return z;
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}
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int
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foo (int a, int b, int c, int d, int e, int f, int g, int h)
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{
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volatile int i = (a + b) - (g + h) + bar ();
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volatile int j = (e + f) - (c + d);
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return a + b + c + d + e + f + g + h + i + j;
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}
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int foo1 (int a, int b, int c, int d, int e, int f, int g, int h) __attribute__ ((interrupt ("IRQ")));
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int
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foo1 (int a, int b, int c, int d, int e, int f, int g, int h)
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{
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volatile int i = (a + b) - (g + h) + bar ();
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volatile int j = (e + f) - (c + d);
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return a + b + c + d + e + f + g + h + i + j;
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}
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#endif
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int
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main (void)
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{
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#ifndef __thumb__
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if (foo (1, 2, 3, 4, 5, 6, 7, 8) != 32)
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abort ();
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if (foo1 (1, 2, 3, 4, 5, 6, 7, 8) != 32)
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abort ();
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#endif
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exit (0);
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}
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