From 2bbbbd6ac823181f8c3cceb55482254c4255a65a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 2 Nov 2009 18:22:51 +0000
Subject: [PATCH] disable IPSCCP support for multiple return values, it is
 buggy, so just disable it until I can fix it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85810 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/SCCP.cpp          | 3 ++-
 test/Transforms/SCCP/2008-03-10-sret.ll | 2 ++
 test/Transforms/SCCP/ipsccp-basic.ll    | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 384b0baaa59..42791d660d6 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -1650,7 +1650,8 @@ bool IPSCCP::runOnModule(Module &M) {
     
     // If this is a strong or ODR definition of this function, then we can
     // propagate information about its result into callsites of it.
-    if (!F->mayBeOverridden())
+    if (!F->mayBeOverridden() &&
+        !isa<StructType>(F->getReturnType()))
       Solver.AddTrackedFunction(F);
     
     // If this function only has direct calls that we can see, we can track its
diff --git a/test/Transforms/SCCP/2008-03-10-sret.ll b/test/Transforms/SCCP/2008-03-10-sret.ll
index 85bcaf4d2db..ec99e292a76 100644
--- a/test/Transforms/SCCP/2008-03-10-sret.ll
+++ b/test/Transforms/SCCP/2008-03-10-sret.ll
@@ -4,6 +4,8 @@
 ; RUN: grep {%mrv1 = insertvalue %T %mrv, i32 17, 1} %t
 ; RUN: grep {ret %T %mrv1} %t
 
+; XFAIL: *
+
 %T = type {i32,i32}
 
 define internal {i32, i32} @bar(i32 %A) {
diff --git a/test/Transforms/SCCP/ipsccp-basic.ll b/test/Transforms/SCCP/ipsccp-basic.ll
index 4c3c1cf054c..f015834f87c 100644
--- a/test/Transforms/SCCP/ipsccp-basic.ll
+++ b/test/Transforms/SCCP/ipsccp-basic.ll
@@ -1,4 +1,5 @@
 ; RUN: opt < %s -ipsccp -S | FileCheck %s
+; XFAIL: *
 
 ;;======================== test1