From 671c92d886c1559e1986141b6f7bb268a63c911e Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Wed, 2 Apr 2014 14:39:07 +0000
Subject: [PATCH] ARM64: fix lowering of fp128 fptosi/fptoui

We were creating libcall nodes that returned an MVT::f128, when these
particular operations actually return an int of some stripe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205425 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM64/ARM64ISelLowering.cpp  |  7 +++-
 test/CodeGen/ARM64/illegal-float-ops.ll | 48 +++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/lib/Target/ARM64/ARM64ISelLowering.cpp b/lib/Target/ARM64/ARM64ISelLowering.cpp
index 66207790c8a..7bea3d1b724 100644
--- a/lib/Target/ARM64/ARM64ISelLowering.cpp
+++ b/lib/Target/ARM64/ARM64ISelLowering.cpp
@@ -1812,7 +1812,12 @@ SDValue ARM64TargetLowering::LowerFP_TO_INT(SDValue Op,
   else
     LC = RTLIB::getFPTOUINT(Op.getOperand(0).getValueType(), Op.getValueType());
 
-  return LowerF128Call(Op, DAG, LC);
+  SmallVector<SDValue, 2> Ops;
+  for (unsigned i = 0, e = Op->getNumOperands(); i != e; ++i)
+    Ops.push_back(Op.getOperand(i));
+
+  return makeLibCall(DAG, LC, Op.getValueType(), &Ops[0], Ops.size(), false,
+                     SDLoc(Op)).first;
 }
 
 static SDValue LowerVectorINT_TO_FP(SDValue Op, SelectionDAG &DAG) {
diff --git a/test/CodeGen/ARM64/illegal-float-ops.ll b/test/CodeGen/ARM64/illegal-float-ops.ll
index a1220797449..9a35fe54d32 100644
--- a/test/CodeGen/ARM64/illegal-float-ops.ll
+++ b/test/CodeGen/ARM64/illegal-float-ops.ll
@@ -245,3 +245,51 @@ define void @test_fmuladd(fp128 %fp128) {
 
   ret void
 }
+
+define i32 @test_fptosi32(fp128 %a) {
+; CHECK-LABEL: test_fptosi32:
+; CHECK: bl __fixtfsi
+  %conv.i = fptosi fp128 %a to i32
+  %b = add nsw i32 %conv.i, 48
+  ret i32 %b
+}
+
+define i64 @test_fptosi64(fp128 %a) {
+; CHECK-LABEL: test_fptosi64:
+; CHECK: bl __fixtfdi
+  %conv.i = fptosi fp128 %a to i64
+  %b = add nsw i64 %conv.i, 48
+  ret i64 %b
+}
+
+define i128 @test_fptosi128(fp128 %a) {
+; CHECK-LABEL: test_fptosi128:
+; CHECK: bl __fixtfti
+  %conv.i = fptosi fp128 %a to i128
+  %b = add nsw i128 %conv.i, 48
+  ret i128 %b
+}
+
+define i32 @test_fptoui32(fp128 %a) {
+; CHECK-LABEL: test_fptoui32:
+; CHECK: bl __fixunstfsi
+  %conv.i = fptoui fp128 %a to i32
+  %b = add nsw i32 %conv.i, 48
+  ret i32 %b
+}
+
+define i64 @test_fptoui64(fp128 %a) {
+; CHECK-LABEL: test_fptoui64:
+; CHECK: bl __fixunstfdi
+  %conv.i = fptoui fp128 %a to i64
+  %b = add nsw i64 %conv.i, 48
+  ret i64 %b
+}
+
+define i128 @test_fptoui128(fp128 %a) {
+; CHECK-LABEL: test_fptoui128:
+; CHECK: bl __fixunstfti
+  %conv.i = fptoui fp128 %a to i128
+  %b = add nsw i128 %conv.i, 48
+  ret i128 %b
+}