From 606893294095e214f50937e8f8e9770efaab07a7 Mon Sep 17 00:00:00 2001
From: Akira Hatanaka <ahatanaka@mips.com>
Date: Fri, 22 Feb 2013 21:10:03 +0000
Subject: [PATCH] [mips] Emit call16 operator instead of got_disp. The former
 allows lazy binding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175920 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/MipsISelLowering.cpp       |  4 +--
 test/CodeGen/Mips/mips64-expand-libcall.ll | 14 -----------
 test/CodeGen/Mips/mips64-libcall.ll        | 29 ++++++++++++++++++++++
 3 files changed, 30 insertions(+), 17 deletions(-)
 delete mode 100644 test/CodeGen/Mips/mips64-expand-libcall.ll
 create mode 100644 test/CodeGen/Mips/mips64-libcall.ll

diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index b9a0bfbe279..034a67261fb 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -3298,9 +3298,7 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
     else if (LargeGOT)
       Callee = getAddrGlobalLargeGOT(Callee, DAG, MipsII::MO_CALL_HI16,
                                      MipsII::MO_CALL_LO16);
-    else if (HasMips64)
-      Callee = getAddrGlobal(Callee, DAG, MipsII::MO_GOT_DISP);
-    else // O32 & PIC
+    else // N64 || PIC
       Callee = getAddrGlobal(Callee, DAG, MipsII::MO_GOT_CALL);
 
     GlobalOrExternal = true;
diff --git a/test/CodeGen/Mips/mips64-expand-libcall.ll b/test/CodeGen/Mips/mips64-expand-libcall.ll
deleted file mode 100644
index 4a6721105c4..00000000000
--- a/test/CodeGen/Mips/mips64-expand-libcall.ll
+++ /dev/null
@@ -1,14 +0,0 @@
-; RUN: llc -march=mips64el -mcpu=mips64r2 -O3 < %s | FileCheck %s
-
-; Check that %add is not passed in an integer register.
-;
-; CHECK-NOT: dmfc1 $4
-
-define double @callfloor(double %d) nounwind readnone {
-entry:
-  %add = fadd double %d, 1.000000e+00
-  %call = tail call double @floor(double %add) nounwind readnone
-  ret double %call
-}
-
-declare double @floor(double) nounwind readnone
diff --git a/test/CodeGen/Mips/mips64-libcall.ll b/test/CodeGen/Mips/mips64-libcall.ll
new file mode 100644
index 00000000000..c53ccfde51c
--- /dev/null
+++ b/test/CodeGen/Mips/mips64-libcall.ll
@@ -0,0 +1,29 @@
+; RUN: llc -march=mips64el -mcpu=mips64r2 -O3 < %s |\
+; RUN: FileCheck %s -check-prefix=HARD
+; RUN: llc -march=mips64el -mcpu=mips64r2 -soft-float < %s |\
+; RUN: FileCheck %s -check-prefix=SOFT
+
+; Check that %add is not passed in an integer register.
+;
+; HARD    : callfloor:
+; HARD-NOT: dmfc1 $4
+
+define double @callfloor(double %d) nounwind readnone {
+entry:
+  %add = fadd double %d, 1.000000e+00
+  %call = tail call double @floor(double %add) nounwind readnone
+  ret double %call
+}
+
+declare double @floor(double) nounwind readnone
+
+; Check call16.
+;
+; SOFT: f64add:
+; SOFT: ld $25, %call16(__adddf3)
+
+define double @f64add(double %a, double %b) {
+entry:
+  %add = fadd double %a, %b
+  ret double %add
+}