/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-options "-O1 -fdump-tree-dom2" } */
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/* { dg-options "-O1 -fdump-tree-dom2" } */
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|
|
|
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typedef struct rs6000_stack {
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typedef struct rs6000_stack {
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int first_gp_reg_save;
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int first_gp_reg_save;
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} rs6000_stack_t;
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} rs6000_stack_t;
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extern char regs_ever_live[113];
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extern char regs_ever_live[113];
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extern rs6000_stack_t *rs6000_stack_info (void);
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extern rs6000_stack_t *rs6000_stack_info (void);
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void
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void
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rs6000_emit_prologue (int i, rs6000_stack_t *info)
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rs6000_emit_prologue (int i, rs6000_stack_t *info)
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{
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{
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if (regs_ever_live[info->first_gp_reg_save + i] || i+info->first_gp_reg_save)
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if (regs_ever_live[info->first_gp_reg_save + i] || i+info->first_gp_reg_save)
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gen_rtx_REG (info->first_gp_reg_save + i);
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gen_rtx_REG (info->first_gp_reg_save + i);
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}
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}
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/* There should be precisely one load of first_gp_reg_save. If there is
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/* There should be precisely one load of first_gp_reg_save. If there is
|
more than one, then the dominator optimizations failed. */
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more than one, then the dominator optimizations failed. */
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/* { dg-final { scan-tree-dump-times "first_gp_reg_save" 1 "dom2"} } */
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/* { dg-final { scan-tree-dump-times "first_gp_reg_save" 1 "dom2"} } */
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|
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/* There should be precisely one addition. If there is more than one, then
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/* There should be precisely one addition. If there is more than one, then
|
the dominator optimizations failed, most likely due to not handling
|
the dominator optimizations failed, most likely due to not handling
|
commutative operands correctly. */
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commutative operands correctly. */
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/* { dg-final { scan-tree-dump-times "\\+" 1 "dom2"} } */
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/* { dg-final { scan-tree-dump-times "\\+" 1 "dom2"} } */
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|
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/* { dg-final { cleanup-tree-dump "dom2" } } */
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/* { dg-final { cleanup-tree-dump "dom2" } } */
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