From 9cb8e7b9f5e36e46ecac133b612d6187892342dc Mon Sep 17 00:00:00 2001
From: Reed Kotler <rkotler@mips.com>
Date: Wed, 13 Feb 2013 08:32:14 +0000
Subject: [PATCH] Make jumptables work for -static

llvm-svn: 175044
---
 llvm/lib/Target/Mips/Mips16InstrInfo.td |  2 +
 llvm/test/CodeGen/Mips/jtstat.ll        | 71 +++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 llvm/test/CodeGen/Mips/jtstat.ll

diff --git a/llvm/lib/Target/Mips/Mips16InstrInfo.td b/llvm/lib/Target/Mips/Mips16InstrInfo.td
index 49048db..c3e61bb 100644
--- a/llvm/lib/Target/Mips/Mips16InstrInfo.td
+++ b/llvm/lib/Target/Mips/Mips16InstrInfo.td
@@ -1607,6 +1607,8 @@ def: Mips16Pat<(add CPU16Regs:$hi, (MipsLo tglobaladdr:$lo)),
 
 def : Mips16Pat<(MipsHi tglobaladdr:$in), 
                 (SllX16 (LiRxImmX16 tglobaladdr:$in), 16)>;
+def : Mips16Pat<(MipsHi tjumptable:$in),
+                (SllX16 (LiRxImmX16 tjumptable:$in), 16)>;
 def : Mips16Pat<(MipsHi tglobaltlsaddr:$in),
                 (SllX16 (LiRxImmX16 tglobaltlsaddr:$in), 16)>;
 
diff --git a/llvm/test/CodeGen/Mips/jtstat.ll b/llvm/test/CodeGen/Mips/jtstat.ll
new file mode 100644
index 0000000..6c1eb8d
--- /dev/null
+++ b/llvm/test/CodeGen/Mips/jtstat.ll
@@ -0,0 +1,71 @@
+; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=static < %s | FileCheck %s -check-prefix=CHECK-STATIC16
+
+@s = global i8 115, align 1
+@c = common global i8 0, align 1
+@.str = private unnamed_addr constant [5 x i8] c"%c \0A\00", align 1
+
+define void @test(i32 %i) nounwind {
+entry:
+  %i.addr = alloca i32, align 4
+  store i32 %i, i32* %i.addr, align 4
+  %0 = load i32* %i.addr, align 4
+  switch i32 %0, label %sw.epilog [
+    i32 115, label %sw.bb
+    i32 105, label %sw.bb1
+    i32 100, label %sw.bb2
+    i32 108, label %sw.bb3
+    i32 99, label %sw.bb4
+    i32 68, label %sw.bb5
+    i32 81, label %sw.bb6
+    i32 76, label %sw.bb7
+  ]
+
+sw.bb:                                            ; preds = %entry
+  store i8 115, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb1:                                           ; preds = %entry
+  store i8 105, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb2:                                           ; preds = %entry
+  store i8 100, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb3:                                           ; preds = %entry
+  store i8 108, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb4:                                           ; preds = %entry
+  store i8 99, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb5:                                           ; preds = %entry
+  store i8 68, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb6:                                           ; preds = %entry
+  store i8 81, i8* @c, align 1
+  br label %sw.epilog
+
+sw.bb7:                                           ; preds = %entry
+  store i8 76, i8* @c, align 1
+  br label %sw.epilog
+
+sw.epilog:                                        ; preds = %entry, %sw.bb7, %sw.bb6, %sw.bb5, %sw.bb4, %sw.bb3, %sw.bb2, %sw.bb1, %sw.bb
+  ret void
+}
+
+; CHECK-STATIC16 	li	${{[0-9]+}}, %hi($JTI{{[0-9]+}}_{{[0-9]+}})
+; CHECK-STATIC16 	lw	${{[0-9]+}}, %lo($JTI{{[0-9]+}}_{{[0-9]+}})({{[0-9]+}})
+; CHECK-STATIC16: $JTI{{[0-9]+}}_{{[0-9]+}}:
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
+; CHECK-STATIC16: .4byte ($BB0_{{[0-9]+}})
-- 
2.7.4