Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/gcc.dg/spill-1.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
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1 /* This caused an ICE during register spilling when targeting thumb.
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2 There are 8 registers available for arithmetic operations (r0-r7)
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3 r7 is the frame pointer, and r0-r3 are used to pass arguments.
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4 Combine was extending the lives of the arguments (in r0-r3) up until the
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5 call to z. This leaves only 3 regs free which isn't enough to preform the
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6 doubleword addition. */
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7 /* { dg-do compile } */
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8 /* { dg-options "-O2 -fno-omit-frame-pointer" } */
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9 void z(int);
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10 int foo(int a, int b, int c, int d, long long *q)
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11 {
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12 *q=*q+1;
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13 z (a+b+c+d);
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14 }
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