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jeremybenn |
/* { dg-do compile } */
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/* { dg-require-effective-target nonpic } */
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/* { dg-options "-O2" } */
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/* Check volatiles are written, read or not re-read consistently */
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/* simple assignments */
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extern int volatile obj_0;
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void test_0 (int data)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_0(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_0(\\(%rip\\))?," } } */
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obj_0 = data;
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}
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extern int volatile obj_1;
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int test_1 (int data)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_1(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_1(\\(%rip\\))?," } } */
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return obj_1 = data;
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}
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extern int volatile obj_2;
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int test_2 (void)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_2(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_2(\\(%rip\\))?," } } */
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return obj_2 = 0;
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}
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/* Assignments in compound exprs */
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extern int volatile obj_3;
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int test_3 (int data)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_3(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_3(\\(%rip\\))?," } } */
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return (obj_3 = data, 0);
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}
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extern int volatile obj_4;
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int test_4 (void)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_4(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_4(\\(%rip\\))?," } } */
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return (obj_4 = 0, 0);
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}
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extern int volatile obj_5;
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int test_5 (void)
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{
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/* should reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_5(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler "movl\[ \t\]_?obj_5(\\(%rip\\))?," } } */
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return (obj_5 = 0, obj_5);
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}
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/* Assignments in conditional exprs */
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extern int volatile obj_6;
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void test_6 (int data, int cond)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_6(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_6(\\(%rip\\))?," } } */
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cond ? obj_6 = data : 0;
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}
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extern int volatile obj_7;
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int test_7 (int data, int cond)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_7(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_7(\\(%rip\\))?," } } */
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return cond ? obj_7 = data : 0;
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}
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extern int volatile obj_8;
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int test_8 (int cond)
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{
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/* should not reread obj */
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/* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_8(\\(%rip\\))?" } } */
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/* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_8(\\(%rip\\))?," } } */
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return cond ? obj_8 = 0 : 0;
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}
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