This corresponds to:
[PATCH 75/89] Concretize gimple_cond_set_{lhs|rhs}
https://gcc.gnu.org/ml/gcc-patches/2014-04/msg01222.html
from the original 89-patch kit
That earlier patch was approved by Jeff:
> OK once prereqs go in.
in https://gcc.gnu.org/ml/gcc-patches/2014-05/msg00850.html
gcc/
* gimple.h (gimple_cond_set_lhs): Require a gimple_cond.
(gimple_cond_set_rhs): Likewise.
* tree-parloops.c (transform_to_exit_first_loop): Convert locals
"cond_stmt" and "cond_nit" to gimple_cond, adding checked casts,
since the existing code assumes that code is GIMPLE_COND. Convert
"stmt" to a gimple_assign.
(create_parallel_loop): Likewise for "cond_stmt".
* tree-ssa-loop-im.c (rewrite_bittest): Replace check for code
GIMPLE_COND with a dyn_cast, adding new local "cond_stmt".
---
gcc/ChangeLog.gimple-classes | 16 ++++++++++++++++
gcc/gimple.h | 6 ++----
gcc/tree-parloops.c | 12 +++++++-----
gcc/tree-ssa-loop-im.c | 19 ++++++++++++-------
4 files changed, 37 insertions(+), 16 deletions(-)
diff --git a/gcc/ChangeLog.gimple-classes b/gcc/ChangeLog.gimple-classes
index 503fd44..ece5b80 100644
--- a/gcc/ChangeLog.gimple-classes
+++ b/gcc/ChangeLog.gimple-classes
@@ -1,5 +1,21 @@
2014-10-24 David Malcolm <dmalc...@redhat.com>
+ Concretize gimple_cond_set_{lhs|rhs}
+
+ * gimple.h (gimple_cond_set_lhs): Require a gimple_cond.
+ (gimple_cond_set_rhs): Likewise.
+
+ * tree-parloops.c (transform_to_exit_first_loop): Convert locals
+ "cond_stmt" and "cond_nit" to gimple_cond, adding checked casts,
+ since the existing code assumes that code is GIMPLE_COND. Convert
+ "stmt" to a gimple_assign.
+ (create_parallel_loop): Likewise for "cond_stmt".
+
+ * tree-ssa-loop-im.c (rewrite_bittest): Replace check for code
+ GIMPLE_COND with a dyn_cast, adding new local "cond_stmt".
+
+2014-10-24 David Malcolm <dmalc...@redhat.com>
+
Concretize gimple_cond_set_code
* gimple.h (gimple_cond_set_code): Require a gimple_cond.
diff --git a/gcc/gimple.h b/gcc/gimple.h
index 1639579..eae7b60 100644
--- a/gcc/gimple.h
+++ b/gcc/gimple.h
@@ -3037,9 +3037,8 @@ gimple_cond_lhs_ptr (const_gimple gs)
conditional statement GS. */
static inline void
-gimple_cond_set_lhs (gimple gs, tree lhs)
+gimple_cond_set_lhs (gimple_cond gs, tree lhs)
{
- GIMPLE_CHECK (gs, GIMPLE_COND);
gimple_set_op (gs, 0, lhs);
}
@@ -3068,9 +3067,8 @@ gimple_cond_rhs_ptr (const_gimple gs)
conditional statement GS. */
static inline void
-gimple_cond_set_rhs (gimple gs, tree rhs)
+gimple_cond_set_rhs (gimple_cond gs, tree rhs)
{
- GIMPLE_CHECK (gs, GIMPLE_COND);
gimple_set_op (gs, 1, rhs);
}
diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c
index f5823a6..ac37b0f 100644
--- a/gcc/tree-parloops.c
+++ b/gcc/tree-parloops.c
@@ -1499,14 +1499,15 @@ transform_to_exit_first_loop (struct loop *loop,
edge exit = single_dom_exit (loop), hpred;
tree control, control_name, res, t;
gimple_phi phi, nphi;
- gimple cond_stmt, stmt, cond_nit;
+ gimple_assign stmt;
+ gimple_cond cond_stmt, cond_nit;
tree nit_1;
split_block_after_labels (loop->header);
orig_header = single_succ (loop->header);
hpred = single_succ_edge (loop->header);
- cond_stmt = last_stmt (exit->src);
+ cond_stmt = as_a <gimple_cond> (last_stmt (exit->src));
control = gimple_cond_lhs (cond_stmt);
gcc_assert (gimple_cond_rhs (cond_stmt) == nit);
@@ -1586,7 +1587,7 @@ transform_to_exit_first_loop (struct loop *loop,
/* Initialize the control variable to number of iterations
according to the rhs of the exit condition. */
gimple_stmt_iterator gsi = gsi_after_labels (ex_bb);
- cond_nit = last_stmt (exit->src);
+ cond_nit = as_a <gimple_cond> (last_stmt (exit->src));
nit_1 = gimple_cond_rhs (cond_nit);
nit_1 = force_gimple_operand_gsi (&gsi,
fold_convert (TREE_TYPE (control_name),
nit_1),
@@ -1610,7 +1611,8 @@ create_parallel_loop (struct loop *loop, tree loop_fn,
tree data,
tree t, param;
gimple_omp_parallel omp_par_stmt;
gimple omp_return_stmt1, omp_return_stmt2;
- gimple phi, cond_stmt;
+ gimple phi;
+ gimple_cond cond_stmt;
gimple_omp_for for_stmt;
gimple_omp_continue omp_cont_stmt;
tree cvar, cvar_init, initvar, cvar_next, cvar_base, type;
@@ -1654,7 +1656,7 @@ create_parallel_loop (struct loop *loop, tree loop_fn,
tree data,
/* Extract data for GIMPLE_OMP_FOR. */
gcc_assert (loop->header == single_dom_exit (loop)->src);
- cond_stmt = last_stmt (loop->header);
+ cond_stmt = as_a <gimple_cond> (last_stmt (loop->header));
cvar = gimple_cond_lhs (cond_stmt);
cvar_base = SSA_NAME_VAR (cvar);
diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c
index 8ee47fc..07823ca 100644
--- a/gcc/tree-ssa-loop-im.c
+++ b/gcc/tree-ssa-loop-im.c
@@ -914,6 +914,7 @@ rewrite_bittest (gimple_stmt_iterator *bsi)
gimple stmt1;
gimple_assign stmt2;
gimple use_stmt;
+ gimple_cond cond_stmt;
tree lhs, name, t, a, b;
use_operand_p use;
@@ -922,13 +923,15 @@ rewrite_bittest (gimple_stmt_iterator *bsi)
/* Verify that the single use of lhs is a comparison against zero. */
if (TREE_CODE (lhs) != SSA_NAME
- || !single_imm_use (lhs, &use, &use_stmt)
- || gimple_code (use_stmt) != GIMPLE_COND)
+ || !single_imm_use (lhs, &use, &use_stmt))
return stmt;
- if (gimple_cond_lhs (use_stmt) != lhs
- || (gimple_cond_code (use_stmt) != NE_EXPR
- && gimple_cond_code (use_stmt) != EQ_EXPR)
- || !integer_zerop (gimple_cond_rhs (use_stmt)))
+ cond_stmt = dyn_cast <gimple_cond> (use_stmt);
+ if (!cond_stmt)
+ return stmt;
+ if (gimple_cond_lhs (cond_stmt) != lhs
+ || (gimple_cond_code (cond_stmt) != NE_EXPR
+ && gimple_cond_code (cond_stmt) != EQ_EXPR)
+ || !integer_zerop (gimple_cond_rhs (cond_stmt)))
return stmt;
/* Get at the operands of the shift. The rhs is TMP1 & 1. */
@@ -976,7 +979,9 @@ rewrite_bittest (gimple_stmt_iterator *bsi)
/* Replace the SSA_NAME we compare against zero. Adjust
the type of zero accordingly. */
SET_USE (use, name);
- gimple_cond_set_rhs (use_stmt, build_int_cst_type (TREE_TYPE (name), 0));
+ gimple_cond_set_rhs (cond_stmt,
+ build_int_cst_type (TREE_TYPE (name),
+ 0));
/* Don't use gsi_replace here, none of the new assignments sets
the variable originally set in stmt. Move bsi to stmt1, and
--
1.8.5.3
