Index: llvm/trunk/lib/Analysis/ScalarEvolution.cpp =================================================================== --- llvm/trunk/lib/Analysis/ScalarEvolution.cpp +++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp @@ -5225,6 +5225,13 @@ if (isa(U)) return createNodeForSelectOrPHI(cast(U), U->getOperand(0), U->getOperand(1), U->getOperand(2)); + break; + + case Instruction::Call: + case Instruction::Invoke: + if (Value *RV = CallSite(U).getReturnedArgOperand()) + return getSCEV(RV); + break; } return getUnknown(V); Index: llvm/trunk/test/Analysis/ScalarEvolution/returned.ll =================================================================== --- llvm/trunk/test/Analysis/ScalarEvolution/returned.ll +++ llvm/trunk/test/Analysis/ScalarEvolution/returned.ll @@ -0,0 +1,16 @@ +; RUN: opt < %s -S -analyze -scalar-evolution | FileCheck %s +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" + +define i8* @foo(i32 %no, i8* nocapture %d) nounwind { +entry: + %v = call i8* @func1(i8* %d) + %w = getelementptr i8, i8* %v, i64 5 + ret i8* %w +} + +; CHECK-LABEL: Classifying expressions for: @foo +; CHECK: %w = getelementptr i8, i8* %v, i64 5 +; CHECK-NEXT: (5 + %d) + +declare i8* @func1(i8* returned) nounwind argmemonly +