8323154: C2: assert(cmp != nullptr && cmp->Opcode() == Op_Cmp(bt)) failed: no exit test

Reviewed-by: roland, thartmann, qamai
This commit is contained in:
Christian Hagedorn 2024-01-19 15:49:02 +00:00
parent 16be38887f
commit 6997bfc68d
2 changed files with 50 additions and 1 deletions
src/hotspot/share/opto
test/hotspot/jtreg/compiler/c2

@ -155,7 +155,7 @@ static bool ok_to_convert(Node* inc, Node* var) {
static bool is_cloop_condition(BoolNode* bol) {
for (DUIterator_Fast imax, i = bol->fast_outs(imax); i < imax; i++) {
Node* out = bol->fast_out(i);
if (out->is_CountedLoopEnd()) {
if (out->is_BaseCountedLoopEnd()) {
return true;
}
}

@ -0,0 +1,49 @@
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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*
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*/
package compiler.c2;
/*
* @test
* @bug 8323154
* @summary Long counted loop exit check should not be transformed into an unsigned check
*
* @run main/othervm -Xbatch -XX:CompileCommand=compileonly,compiler.c2.TestMinValueStrideLongCountedLoop::test
* compiler.c2.TestMinValueStrideLongCountedLoop
*/
public class TestMinValueStrideLongCountedLoop {
static long limit = 0;
static long res = 0;
public static void main(String[] args) {
for (int i = 0; i < 10000; i++) {
test();
}
}
static void test() {
for (long i = 0; i >= limit + (Long.MIN_VALUE + 1); i += Long.MIN_VALUE) {
res += 42;
}
}
}