middle-end: Remove integer_three_node [PR116537]

After the small expansion patch for __builtin_prefetch, the
only use of integer_three_node is inside tree-ssa-loop-prefetch.cc so let's
remove it as the loop prefetch pass is not enabled these days by default and
having a tree node around just for that pass is a little wasteful. Integer
constants are also shared these days so calling build_int_cst will use the cached
node anyways.

Bootstrapped and tested on x86_64-linux.

	PR middle-end/116537

gcc/ChangeLog:

	* tree-core.h (enum tree_index): Remove TI_INTEGER_THREE
	* tree-ssa-loop-prefetch.cc (issue_prefetch_ref): Call build_int_cst
	instead of using integer_three_node.
	* tree.cc (build_common_tree_nodes): Remove initialization
	of integer_three_node.
	* tree.h (integer_three_node): Delete.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

diff --git a/gcc/tree-core.h b/gcc/tree-core.h
index 27c569c77022227643151fa4a909a95f3d45bf55..a36817059da3f2e3cb6a1ccbcf2850ea7965e289 100644 (file)
--- a/gcc/tree-core.h
+++ b/gcc/tree-core.h
@@ -662,7 +662,6 @@ enum tree_index : unsigned {
 
   TI_INTEGER_ZERO,
   TI_INTEGER_ONE,
-  TI_INTEGER_THREE,
   TI_INTEGER_MINUS_ONE,
   TI_NULL_POINTER,
 

diff --git a/gcc/tree-ssa-loop-prefetch.cc b/gcc/tree-ssa-loop-prefetch.cc
index 52ea3bad07eb5701d3af2eb2be3e841ec5da4056..529ecae1a3586b9ae9a4f662a1485241bde05add 100644 (file)
--- a/gcc/tree-ssa-loop-prefetch.cc
+++ b/gcc/tree-ssa-loop-prefetch.cc
@@ -1183,7 +1183,7 @@ issue_prefetch_ref (struct mem_ref *ref, unsigned unroll_factor, unsigned ahead)
   addr_base = force_gimple_operand_gsi (&bsi, unshare_expr (addr_base),
                                        true, NULL, true, GSI_SAME_STMT);
   write_p = ref->write_p ? integer_one_node : integer_zero_node;
-  local = nontemporal ? integer_zero_node : integer_three_node;
+  local = nontemporal ? integer_zero_node : build_int_cst (integer_type_node, 3);
 
   for (ap = 0; ap < n_prefetches; ap++)
     {

diff --git a/gcc/tree.cc b/gcc/tree.cc
index 17a5cea7c252b68d6b75d2be9a278075214858cb..b14cfbe7929bb18939a800db05007301d93f67e7 100644 (file)
--- a/gcc/tree.cc
+++ b/gcc/tree.cc
@@ -9567,7 +9567,6 @@ build_common_tree_nodes (bool signed_char)
   /* Define these next since types below may used them.  */
   integer_zero_node = build_int_cst (integer_type_node, 0);
   integer_one_node = build_int_cst (integer_type_node, 1);
-  integer_three_node = build_int_cst (integer_type_node, 3);
   integer_minus_one_node = build_int_cst (integer_type_node, -1);
 
   size_zero_node = size_int (0);

diff --git a/gcc/tree.h b/gcc/tree.h
index c501019717f085f7da2f0fcc050c75f323bca4f1..93aa7d22d6f82b4cba0ae8d1cb6938fc2f238892 100644 (file)
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -4444,7 +4444,6 @@ tree_strip_any_location_wrapper (tree exp)
 
 #define integer_zero_node              global_trees[TI_INTEGER_ZERO]
 #define integer_one_node               global_trees[TI_INTEGER_ONE]
-#define integer_three_node              global_trees[TI_INTEGER_THREE]
 #define integer_minus_one_node         global_trees[TI_INTEGER_MINUS_ONE]
 #define size_zero_node                 global_trees[TI_SIZE_ZERO]
 #define size_one_node                  global_trees[TI_SIZE_ONE]