New Snapshot from STMicroelectronics 2009-02-18 (rev 1349)st/cli

Changes from Gabriele Svelto and Andrea C. Ornstein

- Added support for pointers in min/max builtins
- Implemented address generation of imaginary numbers parts.
- Reworked the code used for splitting switches.
  When splitting a switch with more than 8192 cases
  the default case label was set incorrectly causing an ICE during CFG creation,
  fixed.
- Define shift instructions in the .md file,
  fixes a problem when the loop optimizer tries to calculate an instruction cost.
- Fixed a bug which caused the cil_name attribute to be ignored during CIL emission.
- Remove more redundant conversions.
- Fixed a bug which caused an ICE when a NEGATE_EXPR had a pointer argument.
- Optimized bit-field initializers when endianness is selected.


git-svn-id: https://gcc.gnu.org/svn/gcc/branches/st/cli@144262 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 35 insertions, 0 deletions

diff --git a/gcc/config/cil32/cil-stmt.c b/gcc/config/cil32/cil-stmt.c
index 0480ce38d53..70fdcf0c4a9 100644
--- a/gcc/config/cil32/cil-stmt.c
+++ b/gcc/config/cil32/cil-stmt.c
@@ -266,6 +266,41 @@ cil_call_nargs_base (const_cil_stmt stmt)
     }
 }
 
+/* Return the low value of the I-th case of CIL switch statement as an
+   HOST_WIDE_INT instead of a tree.  */
+
+HOST_WIDE_INT
+cil_switch_case_low (const_cil_stmt stmt, size_t i)
+{
+  tree value;
+
+  gcc_assert (stmt->opcode == CIL_SWITCH);
+  gcc_assert (i < stmt->arg.labels->ncases);
+
+  value = CASE_LOW (stmt->arg.labels->cases[i]);
+  return tree_low_cst (value, TYPE_UNSIGNED (TREE_TYPE (value)));
+}
+
+/* Return the high value of the I-th case of CIL switch statement as an
+   HOST_WIDE_INT instead of a tree. If the case doesn't represent a range then
+   this function will return the case value (i.e. the low value). */
+
+HOST_WIDE_INT
+cil_switch_case_high (const_cil_stmt stmt, size_t i)
+{
+  tree value;
+
+  gcc_assert (stmt->opcode == CIL_SWITCH);
+  gcc_assert (i < stmt->arg.labels->ncases);
+
+  if (CASE_HIGH (stmt->arg.labels->cases[i]))
+    value = CASE_HIGH (stmt->arg.labels->cases[i]);
+  else
+    value = CASE_LOW (stmt->arg.labels->cases[i]);
+
+  return tree_low_cst (value, TYPE_UNSIGNED (TREE_TYPE (value)));
+}
+
 /* Create a deep copy of the CIL statement pointed by STMT and return it.  */
 
 cil_stmt