Index: llvm/trunk/lib/Transforms/Utils/CallPromotionUtils.cpp =================================================================== --- llvm/trunk/lib/Transforms/Utils/CallPromotionUtils.cpp +++ llvm/trunk/lib/Transforms/Utils/CallPromotionUtils.cpp @@ -389,12 +389,14 @@ // Inspect the arguments of the call site. If an argument's type doesn't // match the corresponding formal argument's type in the callee, bitcast it // to the correct type. - for (Use &U : CS.args()) { - unsigned ArgNo = CS.getArgumentNo(&U); - Type *FormalTy = Callee->getFunctionType()->getParamType(ArgNo); - Type *ActualTy = U.get()->getType(); + auto CalleeType = Callee->getFunctionType(); + auto CalleeParamNum = CalleeType->getNumParams(); + for (unsigned ArgNo = 0; ArgNo < CalleeParamNum; ++ArgNo) { + auto *Arg = CS.getArgument(ArgNo); + Type *FormalTy = CalleeType->getParamType(ArgNo); + Type *ActualTy = Arg->getType(); if (FormalTy != ActualTy) { - auto *Cast = CastInst::Create(Instruction::BitCast, U.get(), FormalTy, "", + auto *Cast = CastInst::Create(Instruction::BitCast, Arg, FormalTy, "", CS.getInstruction()); CS.setArgument(ArgNo, Cast); } Index: llvm/trunk/test/Transforms/PGOProfile/indirect_call_promotion_vla.ll =================================================================== --- llvm/trunk/test/Transforms/PGOProfile/indirect_call_promotion_vla.ll +++ llvm/trunk/test/Transforms/PGOProfile/indirect_call_promotion_vla.ll @@ -0,0 +1,28 @@ +; RUN: opt < %s -pgo-icall-prom -S | FileCheck %s + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +%struct.A = type { i8 } +%struct.B = type { i8 } +@foo = common global i32 (%struct.A*, ...)* null, align 8 + +define i32 @func1(%struct.B* %x, ...) { +entry: + ret i32 0 +} + +define i32 @bar(%struct.A* %x) { +entry: + %tmp = load i32 (%struct.A*, ...)*, i32 (%struct.A*, ...)** @foo, align 8 +; CHECK: [[CMP:%[0-9]+]] = icmp eq i32 (%struct.A*, ...)* %tmp, bitcast (i32 (%struct.B*, ...)* @func1 to i32 (%struct.A*, ...)*) +; CHECK: br i1 [[CMP]], label %if.true.direct_targ, label %if.false.orig_indirect, !prof [[BRANCH_WEIGHT:![0-9]+]] +; CHECK: if.true.direct_targ: +; CHECK: [[DIRCALL_RET:%[0-9]+]] = call i32 (%struct.B*, ...) @func1 +; CHECK: br label %if.end.icp + %call = call i32 (%struct.A*, ...) %tmp(%struct.A* %x, i32 0), !prof !1 + ret i32 %call +} + +; CHECK: [[BRANCH_WEIGHT]] = !{!"branch_weights", i32 1500, i32 100} +!1 = !{!"VP", i32 0, i64 1600, i64 -2545542355363006406, i64 1500}