Author: evancheng Date: Tue Feb 5 14:04:18 2008 New Revision: 46763 URL: http://llvm.org/viewvc/llvm-project?rev=46763&view=rev Log: If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead).
Added: llvm/trunk/test/CodeGen/PowerPC/2008-02-05-LiveIntervalsAssert.ll Modified: llvm/trunk/lib/CodeGen/LiveVariables.cpp Modified: llvm/trunk/lib/CodeGen/LiveVariables.cpp URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveVariables.cpp?rev=46763&r1=46762&r2=46763&view=diff ============================================================================== --- llvm/trunk/lib/CodeGen/LiveVariables.cpp (original) +++ llvm/trunk/lib/CodeGen/LiveVariables.cpp Tue Feb 5 14:04:18 2008 @@ -436,8 +436,9 @@ if (MO.isRegister() && MO.isDef() && MO.getReg()) { if (MRegisterInfo::isVirtualRegister(MO.getReg())) { VarInfo &VRInfo = getVarInfo(MO.getReg()); - // Defaults to dead - VRInfo.Kills.push_back(MI); + if (VRInfo.AliveBlocks.none()) + // If vr is not alive in any block, then defaults to dead. + VRInfo.Kills.push_back(MI); } else if (MRegisterInfo::isPhysicalRegister(MO.getReg()) && !ReservedRegisters[MO.getReg()]) { HandlePhysRegDef(MO.getReg(), MI); Added: llvm/trunk/test/CodeGen/PowerPC/2008-02-05-LiveIntervalsAssert.ll URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/PowerPC/2008-02-05-LiveIntervalsAssert.ll?rev=46763&view=auto ============================================================================== --- llvm/trunk/test/CodeGen/PowerPC/2008-02-05-LiveIntervalsAssert.ll (added) +++ llvm/trunk/test/CodeGen/PowerPC/2008-02-05-LiveIntervalsAssert.ll Tue Feb 5 14:04:18 2008 @@ -0,0 +1,67 @@ +; RUN: llvm-as < %s | llc -mtriple=powerpc-apple-darwin + + %struct.Handle = type { %struct.oopDesc** } + %struct.JNI_ArgumentPusher = type { %struct.SignatureIterator, %struct.JavaCallArguments* } + %struct.JNI_ArgumentPusherArray = type { %struct.JNI_ArgumentPusher, %struct.JvmtiEventEnabled* } + %struct.JavaCallArguments = type { [9 x i32], [9 x i32], i32*, i32*, i32, i32, i32 } + %struct.JvmtiEventEnabled = type { i64 } + %struct.KlassHandle = type { %struct.Handle } + %struct.SignatureIterator = type { i32 (...)**, %struct.KlassHandle, i32, i32, i32 } + %struct.instanceOopDesc = type { %struct.oopDesc } + %struct.oopDesc = type { %struct.instanceOopDesc*, %struct.instanceOopDesc* } [EMAIL PROTECTED] = external constant [44 x i8] ; <[44 x i8]*> [#uses=1] + +define void @_ZN23JNI_ArgumentPusherArray7iterateEy(%struct.JNI_ArgumentPusherArray* %this, i64 %fingerprint) nounwind { +entry: + br label %bb113 + +bb22.preheader: ; preds = %bb113 + ret void + +bb32.preheader: ; preds = %bb113 + ret void + +bb42.preheader: ; preds = %bb113 + ret void + +bb52: ; preds = %bb113 + br label %bb113 + +bb62.preheader: ; preds = %bb113 + ret void + +bb72.preheader: ; preds = %bb113 + ret void + +bb82: ; preds = %bb113 + br label %bb113 + +bb93: ; preds = %bb113 + br label %bb113 + +bb103.preheader: ; preds = %bb113 + ret void + +bb113: ; preds = %bb113, %bb93, %bb82, %bb52, %entry + %fingerprint_addr.0.reg2mem.9 = phi i64 [ 0, %entry ], [ 0, %bb52 ], [ 0, %bb82 ], [ 0, %bb93 ], [ %tmp118, %bb113 ] ; <i64> [#uses=1] + tail call void @_Z28report_should_not_reach_herePKci( i8* getelementptr ([44 x i8]* @.str, i32 0, i32 0), i32 817 ) nounwind + %tmp118 = lshr i64 %fingerprint_addr.0.reg2mem.9, 4 ; <i64> [#uses=2] + %tmp21158 = and i64 %tmp118, 15 ; <i64> [#uses=1] + switch i64 %tmp21158, label %bb113 [ + i64 1, label %bb22.preheader + i64 2, label %bb52 + i64 3, label %bb32.preheader + i64 4, label %bb42.preheader + i64 5, label %bb62.preheader + i64 6, label %bb82 + i64 7, label %bb93 + i64 8, label %bb103.preheader + i64 9, label %bb72.preheader + i64 10, label %UnifiedReturnBlock + ] + +UnifiedReturnBlock: ; preds = %bb113 + ret void +} + +declare void @_Z28report_should_not_reach_herePKci(i8*, i32) _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits