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8146244: compiler/jvmci/code/DataPatchTest.java crashes: SIGSEGV in (getConstClass)getConstClass

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Reviewed-by: twisti
This commit is contained in:
Roland Schatz 2016-01-21 16:22:01 +01:00
parent a5d7b2b450
commit 0691fac50b
2 changed files with 22 additions and 1 deletions
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9
hotspot/test/compiler/jvmci/code/TestAssembler.java
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@ -295,6 +295,15 @@ public abstract class TestAssembler {
data.putFloat(f); data.putFloat(f);
} }
public void align(int alignment) {
int pos = data.position();
int misaligned = pos % alignment;
if (misaligned != 0) {
pos += alignment - misaligned;
data.position(pos);
}
}
private byte[] finish() { private byte[] finish() {
return Arrays.copyOf(data.array(), data.position()); return Arrays.copyOf(data.array(), data.position());
} }

14
hotspot/test/compiler/jvmci/code/sparc/SPARCTestAssembler.java
View file

@ -109,10 +109,11 @@ public class SPARCTestAssembler extends TestAssembler {
@Override @Override
public Register emitLoadLong(long c) { public Register emitLoadLong(long c) {
if ((c & 0xFFFFFFFF) == c) { if ((c & 0xFFFF_FFFFL) == c) {
return emitLoadInt((int) c); return emitLoadInt((int) c);
} else { } else {
DataSectionReference ref = new DataSectionReference(); DataSectionReference ref = new DataSectionReference();
data.align(8);
ref.setOffset(data.position()); ref.setOffset(data.position());
data.emitLong(c); data.emitLong(c);
return emitLoadPointer(ref); return emitLoadPointer(ref);
@ -133,6 +134,7 @@ public class SPARCTestAssembler extends TestAssembler {
@Override @Override
public Register emitLoadFloat(float c) { public Register emitLoadFloat(float c) {
DataSectionReference ref = new DataSectionReference(); DataSectionReference ref = new DataSectionReference();
data.align(4);
ref.setOffset(data.position()); ref.setOffset(data.position());
data.emitFloat(c); data.emitFloat(c);
@ -262,4 +264,14 @@ public class SPARCTestAssembler extends TestAssembler {
recordImplicitException(info); recordImplicitException(info);
emitOp3(0b11, SPARC.g0, 0b001011, SPARC.g0, 0); // LDX [g0+0], g0 emitOp3(0b11, SPARC.g0, 0b001011, SPARC.g0, 0); // LDX [g0+0], g0
} }
@Override
public DataSectionReference emitDataItem(HotSpotConstant c) {
if (c.isCompressed()) {
data.align(4);
} else {
data.align(8);
}
return super.emitDataItem(c);
}
} }