Quick compiler: aarch64 codegen & long_min literal
Int64 overflow during instruction selection caused incorrect
code patterns to emitted in some cases of long operations with
an immediate value of 0x8000000000000000.
The code in question was attempting to determine if the immediate
operand would fit in aarch64 immediate instruction variants.
Internal b/17630605
Change-Id: I8177021b73e51302bc1032387d83b1dd567ed6db
diff --git a/test/083-compiler-regressions/src/Main.java b/test/083-compiler-regressions/src/Main.java
index 8d7bf01..8010711 100644
--- a/test/083-compiler-regressions/src/Main.java
+++ b/test/083-compiler-regressions/src/Main.java
@@ -30,6 +30,7 @@
}
public static void main(String args[]) throws Exception {
+ b17630605();
b17411468();
b2296099Test();
b2302318Test();
@@ -62,6 +63,18 @@
minDoubleWith3ConstsTest();
}
+ public static void b17630605() {
+ // b/17630605 - failure to properly handle min long immediates.
+ long a1 = 40455547223404749L;
+ long a2 = Long.MIN_VALUE;
+ long answer = a1 + a2;
+ if (answer == -9182916489631371059L) {
+ System.out.println("b17630605 passes");
+ } else {
+ System.out.println("b17630605 fails: " + answer);
+ }
+ }
+
public static void b17411468() {
// b/17411468 - inline Math.round failure.
double d1 = 1.0;