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comparison graal/GraalCompiler/src/com/sun/c1x/gen/PhiSimplifier.java @ 2764:99912abb3ff7

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Phi clean up. Phis no longer save their local/stack index.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Mon, 23 May 2011 15:07:01 +0200
parents 0c5791bc90fb
children 3e3338a1abb9
comparison
equal deleted inserted replaced
2763:5e8a69041cd7 2764:99912abb3ff7
55 return phi; 55 return phi;
56 } else { 56 } else {
57 // attempt to simplify the phi by recursively simplifying its operands 57 // attempt to simplify the phi by recursively simplifying its operands
58 phi.setFlag(Value.Flag.PhiVisited); 58 phi.setFlag(Value.Flag.PhiVisited);
59 Value phiSubst = null; 59 Value phiSubst = null;
60 int max = phi.phiInputCount(); 60 int max = phi.valueCount();
61 boolean cannotSimplify = false; 61 boolean cannotSimplify = false;
62 for (int i = 0; i < max; i++) { 62 for (int i = 0; i < max; i++) {
63 Value oldInstr = phi.inputAt(i); 63 Value oldInstr = phi.valueAt(i);
64 64
65 if (oldInstr == null || oldInstr.isIllegal() || oldInstr.isDeadPhi()) { 65 if (oldInstr == null || oldInstr.isIllegal() || oldInstr.isDeadPhi()) {
66 // if one operand is illegal, make the entire phi illegal 66 // if one operand is illegal, make the entire phi illegal
67 phi.makeDead(); 67 phi.makeDead();
68 phi.clearFlag(Value.Flag.PhiVisited); 68 phi.clearFlag(Value.Flag.PhiVisited);