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* [gcc(refs/vendors/ARM/heads/morello)] vrp: Move INTEGRAL_TYPE_P test
@ 2022-05-13 15:43 Matthew Malcomson
0 siblings, 0 replies; only message in thread
From: Matthew Malcomson @ 2022-05-13 15:43 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:57db681f6093ccbee6a5db4ba991682e77fcaf77
commit 57db681f6093ccbee6a5db4ba991682e77fcaf77
Author: Richard Sandiford <richard.sandiford@arm.com>
Date: Fri May 13 09:59:13 2022 +0100
vrp: Move INTEGRAL_TYPE_P test
register_edge_assert_for_2 was looking for a cast between
integers of the same precision, but it tested for equal
precisions before testing for an integer.
(The context is an ordered comparison involving an INTEGER_CST,
so the value being compared cannot be a capability.)
Diff:
---
gcc/testsuite/gcc.target/aarch64/morello/vrp-1.c | 5 +++++
gcc/tree-vrp.c | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/gcc/testsuite/gcc.target/aarch64/morello/vrp-1.c b/gcc/testsuite/gcc.target/aarch64/morello/vrp-1.c
new file mode 100644
index 00000000000..8580abc0227
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/morello/vrp-1.c
@@ -0,0 +1,5 @@
+__intcap_t bar;
+int foo ()
+{
+ return ({ __builtin_expect(bar > 4096UL, 0) ?: bar; });
+}
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index da0bb590458..64fc58c7e35 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -1835,6 +1835,7 @@ register_edge_assert_for_2 (tree name, edge e,
if (gimple_assign_cast_p (def_stmt))
{
if (CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (def_stmt))
+ && INTEGRAL_TYPE_P (TREE_TYPE (gimple_assign_rhs1 (def_stmt)))
&& ! TYPE_UNSIGNED (TREE_TYPE (gimple_assign_rhs1 (def_stmt)))
&& (TYPE_PRECISION (gimple_expr_type (def_stmt))
== TYPE_PRECISION (TREE_TYPE (gimple_assign_rhs1 (def_stmt)))))
@@ -1845,8 +1846,7 @@ register_edge_assert_for_2 (tree name, edge e,
if (name3 != NULL_TREE
&& TREE_CODE (name3) == SSA_NAME
&& (cst2 == NULL_TREE
- || TREE_CODE (cst2) == INTEGER_CST)
- && INTEGRAL_TYPE_P (TREE_TYPE (name3)))
+ || TREE_CODE (cst2) == INTEGER_CST))
{
tree tmp;
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