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changeset 22979:9ef376e2e6b6

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TraceRA: fix failing TraceGlobalMoveResolutionMappingTest cases and ignore currently unsupported optimization.
author Josef Eisl <josef.eisl@jku.at>
date Thu, 12 Nov 2015 17:24:05 +0100
parents 64eb72b6165d
children e47e7efd9ec0
files graal/com.oracle.graal.lir.test/src/com/oracle/graal/lir/test/alloc/trace/TraceGlobalMoveResolutionMappingTest.java graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolutionPhase.java
diffstat 2 files changed, 11 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.lir.test/src/com/oracle/graal/lir/test/alloc/trace/TraceGlobalMoveResolutionMappingTest.java	Thu Nov 12 18:04:38 2015 +0100
+++ b/graal/com.oracle.graal.lir.test/src/com/oracle/graal/lir/test/alloc/trace/TraceGlobalMoveResolutionMappingTest.java	Thu Nov 12 17:24:05 2015 +0100
@@ -37,6 +37,7 @@
 import jdk.vm.ci.meta.Value;
 
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 
 import com.oracle.graal.lir.alloc.trace.ShadowedRegisterValue;
@@ -248,6 +249,7 @@
     }
 
     @Test
+    @Ignore("Cannot express mapping dependencies (yet)")
     public void testStack2Shadowed0() {
         addMapping(s(2), sd(r1, 1));
         assertSize(2);
@@ -256,6 +258,14 @@
     }
 
     @Test
+    public void testStack2Shadowed0WorkArount() {
+        addMapping(s(2), sd(r1, 1));
+        assertSize(2);
+        assertContains(s(2), v(r1));
+        assertContains(s(2), s(1));
+    }
+
+    @Test
     public void testStack2Shadowed1() {
         addMapping(s(1), sd(r1, 1));
         assertSize(1);
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolutionPhase.java	Thu Nov 12 18:04:38 2015 +0100
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolutionPhase.java	Thu Nov 12 17:24:05 2015 +0100
@@ -143,7 +143,7 @@
             moveResolver.addMapping(src, (AllocatableValue) dst);
         }
         // set dst_shadow
-        if (dstShadow != null && !dstShadow.equals(src)) {
+        if (dstShadow != null && !dstShadow.equals(src) && !dstShadow.equals(srcShadow)) {
             moveResolver.addMapping(src, (AllocatableValue) dstShadow);
         }
     }