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re PR tree-optimization/42893 (Missed conditionally dead store elimination)

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PR tree-optimization/42893
	* gcc.tree-ssa/pr42893.c: New test.

From-SVN: r169933
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Jeff Law 2011-02-08 11:54:12 -07:00 • committed by Jeff Law
parent d2b0caaab8
commit 2cfeef8833
2 changed files with 35 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-02-08 Jeff Law <law@redhat.com>
PR tree-optimization/42893
* gcc.tree-ssa/pr42893.c: New test.
2011-02-08 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/46834

30
gcc/testsuite/gcc.dg/tree-ssa/pr42893.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O3 -fdump-tree-optimized" } */
struct frame_info;
void tui_registers_changed_hook (void);
extern struct frame_info *deprecated_selected_frame;
int tui_refreshing_registers = 0;
void
tui_registers_changed_hook (void)
{
struct frame_info *fi;
fi = deprecated_selected_frame;
if (fi)
{
if (tui_refreshing_registers == 0)
{
tui_refreshing_registers = 1;
tui_refreshing_registers = 0;
}
}
return;
}
/* No references to tui_refreshing_registers should remain. */
/* { dg-final { scan-tree-dump-not "tui_refreshing_registers" "optimized"} } */
/* { dg-final { cleanup-tree-dump "optimized" } } */