Mercurial > hg > graal-jvmci-8
diff graal/GraalCompiler/src/com/sun/c1x/opt/PhiSimplifier.java @ 2695:785e9ecdcc69
Removed the instruction substitutor.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 18 May 2011 15:03:45 +0200 |
parents | 768d77a1c7af |
children | c1ce2a53d6c3 |
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--- a/graal/GraalCompiler/src/com/sun/c1x/opt/PhiSimplifier.java Wed May 18 14:40:29 2011 +0200 +++ b/graal/GraalCompiler/src/com/sun/c1x/opt/PhiSimplifier.java Wed May 18 15:03:45 2011 +0200 @@ -34,13 +34,10 @@ public final class PhiSimplifier implements BlockClosure { final IR ir; - final InstructionSubstituter subst; public PhiSimplifier(IR ir) { this.ir = ir; - this.subst = new InstructionSubstituter(ir); ir.startBlock.iterateAnyOrder(this, false); - subst.finish(); } /** @@ -62,10 +59,7 @@ return x; } Phi phi = (Phi) x; - if (phi.hasSubst()) { - // already substituted, but the subst could be a phi itself, so simplify - return simplify(subst.getSubst(phi)); - } else if (phi.checkFlag(Value.Flag.PhiCannotSimplify)) { + if (phi.checkFlag(Value.Flag.PhiCannotSimplify)) { // already tried, cannot simplify this phi return phi; } else if (phi.checkFlag(Value.Flag.PhiVisited)) { @@ -121,7 +115,6 @@ // successfully simplified the phi assert phiSubst != null : "illegal phi function"; phi.clearFlag(Value.Flag.PhiVisited); - subst.setSubst(phi, phiSubst); return phiSubst; } }