Skip to content

R
riscv-gcc-1
Commit d155c6fe by Jeff Law Committed by Jeff Law
Options

re PR tree-optimization/33562 (aggregate DSE disabled) 

        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
	* doc/invoke.texi: Document new dse-max-object-size param.
	* params.def (PARM_DSE_MAX_OBJECT_SIZE): New PARAM.
	* tree-ssa-dse.c: Include params.h.
	(dse_store_status): New enum.
	(initialize_ao_ref_for_dse): New, partially extracted from
	dse_optimize_stmt.
	(valid_ao_ref_for_dse, normalize_ref): New.
	(setup_live_bytes_from_ref, compute_trims): Likewise.
	(clear_bytes_written_by, maybe_trim_complex_store): Likewise.
	(maybe_trim_partially_dead_store): Likewise.
	(maybe_trim_complex_store): Likewise.
	(dse_classify_store): Renamed from dse_possibly_dead_store_p.
	Track what bytes live from the original store.  Return tri-state
	for dead, partially dead or live.
	(dse_dom_walker): Add constructor, destructor and new private members.
	(delete_dead_call, delete_dead_assignment): New extracted from
	dse_optimize_stmt.
	(dse_optimize_stmt): Make a member of dse_dom_walker.
	Use initialize_ao_ref_for_dse.

        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
	* gcc.dg/tree-ssa/complex-4.c: Remove xfail.
	* gcc.dg/tree-ssa/complex-5.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dse-9.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dse-18.c: New test.
	* gcc.dg/tree-ssa/ssa-dse-19.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dse-20.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dse-21.c: Likewise.

From-SVN: r244442
parent 68b36e59
Showing with 103 additions and 3 deletions
gcc/ChangeLog
2017-01-13 Jeff Law <law@redhat.com>
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
* doc/invoke.texi: Document new dse-max-object-size param.
* params.def (PARM_DSE_MAX_OBJECT_SIZE): New PARAM.
* tree-ssa-dse.c: Include params.h.
(dse_store_status): New enum.
(initialize_ao_ref_for_dse): New, partially extracted from
dse_optimize_stmt.
(valid_ao_ref_for_dse, normalize_ref): New.
(setup_live_bytes_from_ref, compute_trims): Likewise.
(clear_bytes_written_by, maybe_trim_complex_store): Likewise.
(maybe_trim_partially_dead_store): Likewise.
(maybe_trim_complex_store): Likewise.
(dse_classify_store): Renamed from dse_possibly_dead_store_p.
Track what bytes live from the original store. Return tri-state
for dead, partially dead or live.
(dse_dom_walker): Add constructor, destructor and new private members.
(delete_dead_call, delete_dead_assignment): New extracted from
dse_optimize_stmt.
(dse_optimize_stmt): Make a member of dse_dom_walker.
Use initialize_ao_ref_for_dse.
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
......
gcc/doc/invoke.texi
......@@ -9880,6 +9880,10 @@ when adding a new one.
@item avg-loop-niter
Average number of iterations of a loop.
@item dse-max-object-size
Maximum size (in bytes) of objects tracked bytewise by dead store elimination.
Larger values may result in larger compilation times.
@item scev-max-expr-size
Bound on size of expressions used in the scalar evolutions analyzer.
Large expressions slow the analyzer.
......
gcc/params.def
......@@ -532,6 +532,11 @@ DEFPARAM(PARAM_AVG_LOOP_NITER,
"Average number of iterations of a loop.",
10, 1, 0)
DEFPARAM(PARAM_DSE_MAX_OBJECT_SIZE,
"dse-max-object-size",
"Maximum size (in bytes) of objects tracked bytewise by dead store elimination.",
256, 0, 0)
DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
"scev-max-expr-size",
"Bound on size of expressions used in the scalar evolutions analyzer.",
......
gcc/testsuite/ChangeLog
2017-01-13 Jeff Law <law@redhat.com>
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
* gcc.dg/tree-ssa/complex-4.c: Remove xfail.
* gcc.dg/tree-ssa/complex-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-9.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-18.c: New test.
* gcc.dg/tree-ssa/ssa-dse-19.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-20.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-21.c: Likewise.
2017-01-13 Martin Liska <mliska@suse.cz>
PR ipa/79043
......
gcc/testsuite/gcc.dg/tree-ssa/complex-4.c
......@@ -10,4 +10,4 @@ int f(void)
return g(&t);
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/complex-5.c
......@@ -8,4 +8,4 @@ int f(void)
__imag__ t = 2;
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-18.c 0 → 100644
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
int g(_Complex int*);
int f(void)
{
_Complex int t = 0;
int i, j;
__imag__ t += 2;
return g(&t);
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
/* { dg-final { scan-tree-dump-times "REALPART_EXPR" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "IMAGPART_EXPR" 1 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-19.c 0 → 100644
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
int g(_Complex int*);
int f(void)
{
_Complex int t = 0;
int i, j;
__real__ t += 2;
return g(&t);
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
/* { dg-final { scan-tree-dump-times "REALPART_EXPR" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "IMAGPART_EXPR" 1 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-20.c 0 → 100644
/* { dg-do compile } */
/* { dg-options "-O1 -fno-tree-dce -fdump-tree-optimized" } */
_Complex int t = 0;
int f(void)
{
t = 0;
__imag__ t = 2;
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
/* { dg-final { scan-tree-dump-times "REALPART_EXPR" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "IMAGPART_EXPR" 1 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-21.c 0 → 100644
/* { dg-do compile } */
/* { dg-options "-O1 -fno-tree-dce -fdump-tree-optimized" } */
_Complex int t = 0;
int f(void)
{
t = 0;
__real__ t = 2;
}
/* { dg-final { scan-tree-dump-times "__complex__" 0 "optimized" } } */
/* { dg-final { scan-tree-dump-times "REALPART_EXPR" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "IMAGPART_EXPR" 1 "optimized" } } */
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-9.c
......@@ -11,4 +11,4 @@ foo ()
}
/* We should eliminate the first assignment. */
/* { dg-final { scan-tree-dump-times "VDEF" 2 "dse1" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "VDEF" 2 "dse1" } } */
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment