From 142e22a5f497ff33baff6819c8a7d686fa28c7f5 Mon Sep 17 00:00:00 2001 From: Brian Gaeke Date: Fri, 2 Apr 2004 17:52:29 +0000 Subject: [PATCH] Add support for constant select expressions. Clarify the assertion failure msg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12613 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/SparcV9/SparcV9PreSelection.cpp | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/lib/Target/SparcV9/SparcV9PreSelection.cpp b/lib/Target/SparcV9/SparcV9PreSelection.cpp index 90a5fa782cf..9677b45a2e2 100644 --- a/lib/Target/SparcV9/SparcV9PreSelection.cpp +++ b/lib/Target/SparcV9/SparcV9PreSelection.cpp @@ -104,7 +104,7 @@ static Instruction* DecomposeConstantExpr(ConstantExpr* CE, Instruction& insertBefore) { Value *getArg1, *getArg2; - + switch(CE->getOpcode()) { case Instruction::Cast: @@ -124,11 +124,25 @@ static Instruction* DecomposeConstantExpr(ConstantExpr* CE, return new GetElementPtrInst(getArg1, std::vector(CE->op_begin()+1, CE->op_end()), "constantGEP", &insertBefore); - + + case Instruction::Select: { + Value *C, *S1, *S2; + C = CE->getOperand (0); + if (ConstantExpr* CEarg = dyn_cast (C)) + C = DecomposeConstantExpr (CEarg, insertBefore); + S1 = CE->getOperand (1); + if (ConstantExpr* CEarg = dyn_cast (S1)) + S1 = DecomposeConstantExpr (CEarg, insertBefore); + S2 = CE->getOperand (2); + if (ConstantExpr* CEarg = dyn_cast (S2)) + S2 = DecomposeConstantExpr (CEarg, insertBefore); + return new SelectInst (C, S1, S2); + } + default: // must be a binary operator assert(CE->getOpcode() >= Instruction::BinaryOpsBegin && CE->getOpcode() < Instruction::BinaryOpsEnd && - "Unrecognized opcode in ConstantExpr"); + "Unhandled opcode in ConstantExpr"); getArg1 = CE->getOperand(0); if (ConstantExpr* CEarg = dyn_cast(getArg1)) getArg1 = DecomposeConstantExpr(CEarg, insertBefore);