From fbcf4fc81d46f2cace4af479cbb0f165cef1b2b5 Mon Sep 17 00:00:00 2001
From: Francisco Ferrari Bihurriet <fferrari@openjdk.org>
Date: Tue, 17 Sep 2024 18:43:28 +0200
Subject: [PATCH] 8332644: Improve graph optimizations
Reviewed-by: mbalao, andrew
Backport-of: 7c16d649a8118d2e7ee77cedba87e620c83294b4
---
src/hotspot/share/opto/loopnode.cpp | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/hotspot/share/opto/loopnode.cpp b/src/hotspot/share/opto/loopnode.cpp
index ce6ecc4d012..a6a6cc0861f 100644
--- a/src/hotspot/share/opto/loopnode.cpp
+++ b/src/hotspot/share/opto/loopnode.cpp
@@ -2128,7 +2128,7 @@ Node *LoopLimitNode::Ideal(PhaseGVN *phase, bool can_reshape) {
const TypeInt* init_t = phase->type(in(Init) )->is_int();
const TypeInt* limit_t = phase->type(in(Limit))->is_int();
- int stride_p;
+ jlong stride_p;
jlong lim, ini;
julong max;
if (stride_con > 0) {
@@ -2137,10 +2137,10 @@ Node *LoopLimitNode::Ideal(PhaseGVN *phase, bool can_reshape) {
ini = init_t->_lo;
max = (julong)max_jint;
} else {
- stride_p = -stride_con;
+ stride_p = -(jlong)stride_con;
lim = init_t->_hi;
ini = limit_t->_lo;
- max = (julong)min_jint;
+ max = (julong)(juint)min_jint; // double cast to get 0x0000000080000000, not 0xffffffff80000000
}
julong range = lim - ini + stride_p;
if (range <= max) {
--
GitLab