From d53bac7fa4fc0198d94de0894a92af4548f5b4f0 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Mon, 14 Sep 2009 02:20:34 +0000
Subject: [PATCH] ARM/APCS: Don't treat structs w/ floating point types as
 "integer like".

llvm-svn: 81748
---
 clang/lib/CodeGen/TargetABIInfo.cpp |  4 ++++
 clang/test/CodeGen/arm-arguments.c  | 14 ++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/clang/lib/CodeGen/TargetABIInfo.cpp b/clang/lib/CodeGen/TargetABIInfo.cpp
index 1dd88bb48129..c403960580a3 100644
--- a/clang/lib/CodeGen/TargetABIInfo.cpp
+++ b/clang/lib/CodeGen/TargetABIInfo.cpp
@@ -1430,6 +1430,10 @@ static bool isIntegerLikeType(QualType Ty,
   if (Ty->isVectorType())
     return false;
 
+  // Float types are never treated as "integer like".
+  if (Ty->isRealFloatingType())
+    return false;
+
   // If this is a builtin or pointer type then it is ok.
   if (Ty->getAsBuiltinType() || Ty->isPointerType())
     return true;
diff --git a/clang/test/CodeGen/arm-arguments.c b/clang/test/CodeGen/arm-arguments.c
index 0448f92aa415..e58d2fddefcb 100644
--- a/clang/test/CodeGen/arm-arguments.c
+++ b/clang/test/CodeGen/arm-arguments.c
@@ -70,3 +70,17 @@ struct s11 f11(void) {}
 // AAPCS: define arm_aapcscc i32 @f12()
 union u12 { char f0; short f1; int f2; };
 union u12 f12(void) {}
+
+// APCS-GNU: define arm_apcscc void @f13(
+// APCS-GNU: struct.s13* noalias sret
+
+// FIXME: This should return a float.
+// AAPCS-FIXME: define arm_aapcscc float @f13()
+struct s13 { float f0; };
+struct s13 f13(void) {}
+
+// APCS-GNU: define arm_apcscc void @f14(
+// APCS-GNU: struct.s13* noalias sret
+// AAPCS: define arm_aapcscc i32 @f14()
+union u14 { float f0; };
+union u14 f14(void) {}