From 82c84fdd23669d23c02a07498c83b83702979829 Mon Sep 17 00:00:00 2001
From: "Michael J. Spencer" <bigcheesegs@gmail.com>
Date: Tue, 24 Aug 2010 21:04:52 +0000
Subject: Fix COFF x86-64 relocations. PR7960.

Multiple symbol reloc handling part of the patch by Cameron Esfahani.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111963 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/MC/COFF/basic-coff.ll             | 10 +++++-----
 test/MC/COFF/switch-relocations.ll     | 34 ++++++++++++++++++++++++++++++++++
 test/MC/COFF/symbol-fragment-offset.ll | 10 +++++-----
 3 files changed, 44 insertions(+), 10 deletions(-)
 create mode 100644 test/MC/COFF/switch-relocations.ll

(limited to 'test/MC/COFF')

diff --git a/test/MC/COFF/basic-coff.ll b/test/MC/COFF/basic-coff.ll
index 2178bc8..e1bf11e 100644
--- a/test/MC/COFF/basic-coff.ll
+++ b/test/MC/COFF/basic-coff.ll
@@ -1,9 +1,9 @@
-; RUN: llc -filetype=obj %s -o %t
-; RUN: coff-dump.py %abs_tmp | FileCheck %s
+; This test checks that the COFF object emitter works for the most basic
+; programs.
 
-; ModuleID = '-'
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
-target triple = "i686-pc-win32"
+; RUN: llc -filetype=obj -mtriple i686-pc-win32 %s -o %t
+; RUN: coff-dump.py %abs_tmp | FileCheck %s
+; RUN: llc -filetype=obj -mtriple x86_64-pc-win32 %s -o %t
 
 @.str = private constant [12 x i8] c"Hello World\00" ; <[12 x i8]*> [#uses=1]
 
diff --git a/test/MC/COFF/switch-relocations.ll b/test/MC/COFF/switch-relocations.ll
new file mode 100644
index 0000000..300c107
--- /dev/null
+++ b/test/MC/COFF/switch-relocations.ll
@@ -0,0 +1,34 @@
+; The purpose of this test is to see if the COFF object writer can properly
+; relax the fixups that are created for jump tables on x86-64. See PR7960.
+
+; This test case was reduced from Lua/lapi.c.
+
+; RUN: llc -filetype=obj -mtriple i686-pc-win32 %s -o %t
+; RUN: llc -filetype=obj -mtriple x86_64-pc-win32 %s -o %t
+
+define void @lua_gc(i32 %what) nounwind {
+entry:
+  switch i32 %what, label %sw.epilog [
+    i32 0, label %sw.bb
+    i32 1, label %sw.bb
+    i32 2, label %sw.bb
+    i32 3, label %sw.bb14
+    i32 4, label %sw.bb18
+    i32 6, label %sw.bb57
+  ]
+
+sw.bb:                                            ; preds = %entry, %entry, %entry
+  ret void
+
+sw.bb14:                                          ; preds = %entry
+  ret void
+
+sw.bb18:                                          ; preds = %entry
+  ret void
+
+sw.bb57:                                          ; preds = %entry
+  ret void
+
+sw.epilog:                                        ; preds = %entry
+  ret void
+}
diff --git a/test/MC/COFF/symbol-fragment-offset.ll b/test/MC/COFF/symbol-fragment-offset.ll
index bf22c4e..25cae5a 100644
--- a/test/MC/COFF/symbol-fragment-offset.ll
+++ b/test/MC/COFF/symbol-fragment-offset.ll
@@ -1,9 +1,9 @@
-; RUN: llc -filetype=obj %s -o %t
-; RUN: coff-dump.py %abs_tmp | FileCheck %s
+; The purpose of this test is to see if the COFF object writer is emitting the
+; proper relocations for multiple pieces of data in a single data fragment.
 
-; ModuleID = 'coff-fragment-test.c'
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
-target triple = "i686-pc-win32"
+; RUN: llc -filetype=obj -mtriple i686-pc-win32 %s -o %t
+; RUN: coff-dump.py %abs_tmp | FileCheck %s
+; RUN: llc -filetype=obj -mtriple x86_64-pc-win32 %s -o %t
 
 @.str = private constant [7 x i8] c"Hello \00"    ; <[7 x i8]*> [#uses=1]
 @str = internal constant [7 x i8] c"World!\00"    ; <[7 x i8]*> [#uses=1]
-- 
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