Revert: Generate IMAGE_REL_AMD64_ADDR32NB relocations for SEH data structures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185791 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 16 insertions, 53 deletions

diff --git a/lib/MC/MCWin64EH.cpp b/lib/MC/MCWin64EH.cpp
index c3d568b454..8db1fa2a93 100644
--- a/lib/MC/MCWin64EH.cpp
+++ b/lib/MC/MCWin64EH.cpp
@@ -128,29 +128,14 @@ static void EmitUnwindCode(MCStreamer &streamer, MCSymbol *begin,
   }
 }
 
-static void EmitSymbolRefWithOfs(MCStreamer &streamer,
-                                 const MCSymbol *Base,
-                                 const MCSymbol *Other) {
-  MCContext &Context = streamer.getContext();
-  const MCSymbolRefExpr *BaseRef = MCSymbolRefExpr::Create(Base, Context);
-  const MCSymbolRefExpr *OtherRef = MCSymbolRefExpr::Create(Other, Context);
-  const MCExpr *Ofs = MCBinaryExpr::CreateSub(OtherRef, BaseRef, Context);
-  const MCSymbolRefExpr *BaseRefRel = MCSymbolRefExpr::Create(Base,
-                                              MCSymbolRefExpr::VK_COFF_IMGREL32,
-                                              Context);
-  streamer.EmitValue(MCBinaryExpr::CreateAdd(BaseRefRel, Ofs, Context), 4);
-}
-
 static void EmitRuntimeFunction(MCStreamer &streamer,
                                 const MCWin64EHUnwindInfo *info) {
   MCContext &context = streamer.getContext();
 
   streamer.EmitValueToAlignment(4);
-  EmitSymbolRefWithOfs(streamer, info->Function, info->Begin);
-  EmitSymbolRefWithOfs(streamer, info->Function, info->End);
-  streamer.EmitValue(MCSymbolRefExpr::Create(info->Symbol,
-                                             MCSymbolRefExpr::VK_COFF_IMGREL32,
-                                             context), 4);
+  streamer.EmitValue(MCSymbolRefExpr::Create(info->Begin, context), 4);
+  streamer.EmitValue(MCSymbolRefExpr::Create(info->End, context), 4);
+  streamer.EmitValue(MCSymbolRefExpr::Create(info->Symbol, context), 4);
 }
 
 static void EmitUnwindInfo(MCStreamer &streamer, MCWin64EHUnwindInfo *info) {
@@ -203,9 +188,8 @@ static void EmitUnwindInfo(MCStreamer &streamer, MCWin64EHUnwindInfo *info) {
     EmitRuntimeFunction(streamer, info->ChainedParent);
   else if (flags &
            ((Win64EH::UNW_TerminateHandler|Win64EH::UNW_ExceptionHandler) << 3))
-    streamer.EmitValue(MCSymbolRefExpr::Create(info->ExceptionHandler,
-                                              MCSymbolRefExpr::VK_COFF_IMGREL32,
-                                              context), 4);
+    streamer.EmitValue(MCSymbolRefExpr::Create(info->ExceptionHandler, context),
+                       4);
   else if (numCodes < 2) {
     // The minimum size of an UNWIND_INFO struct is 8 bytes. If we're not
     // a chained unwind info, if there is no handler, and if there are fewer
diff --git a/test/MC/COFF/seh.s b/test/MC/COFF/seh.s
index 72d42f4b2e..b1e61a9773 100644
--- a/test/MC/COFF/seh.s
+++ b/test/MC/COFF/seh.s
@@ -1,6 +1,6 @@
 // This test checks that the SEH directives emit the correct unwind data.
 
-// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -s -u -r | FileCheck %s
+// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -s -u | FileCheck %s
 
 // CHECK:      Sections [
 // CHECK:        Section {
@@ -34,27 +34,6 @@
 // CHECK-NEXT:   }
 // CHECK-NEXT: ]
 
-// CHECK-NEXT: Relocations [
-// CHECK-NEXT:   Section (2) .xdata {
-// CHECK-NEXT:     0x14 IMAGE_REL_AMD64_ADDR32NB __C_specific_handler
-// CHECK-NEXT:     0x20 IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x24 IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x28 IMAGE_REL_AMD64_ADDR32NB .xdata
-// CHECK-NEXT:   }
-// CHECK-NEXT:   Section (3) .pdata {
-// CHECK-NEXT:     0x0 IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x4 IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x8 IMAGE_REL_AMD64_ADDR32NB .xdata
-// CHECK-NEXT:     0xC IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x10 IMAGE_REL_AMD64_ADDR32NB func
-// CHECK-NEXT:     0x14 IMAGE_REL_AMD64_ADDR32NB .xdata
-// CHECK-NEXT:     0x18 IMAGE_REL_AMD64_ADDR32NB smallFunc
-// CHECK-NEXT:     0x1C IMAGE_REL_AMD64_ADDR32NB smallFunc
-// CHECK-NEXT:     0x20 IMAGE_REL_AMD64_ADDR32NB .xdata
-// CHECK-NEXT:   }
-// CHECK-NEXT: ]
-
-
 // CHECK:      UnwindInformation [
 // CHECK-NEXT:   RuntimeFunction {
 // CHECK-NEXT:     StartAddress: [[CodeSect1:[^ ]+]] [[BeginDisp1:(\+0x[A-F0-9]+)?]]
diff --git a/test/tools/llvm-objdump/win64-unwind-data.s b/test/tools/llvm-objdump/win64-unwind-data.s
index f8463fb062..a172bfca6b 100644
--- a/test/tools/llvm-objdump/win64-unwind-data.s
+++ b/test/tools/llvm-objdump/win64-unwind-data.s
@@ -3,8 +3,8 @@
 
 // CHECK:      Unwind info:
 // CHECK:      Function Table:
-// CHECK-NEXT: Start Address: func
-// CHECK-NEXT: End Address: func + 0x001b
+// CHECK-NEXT: Start Address: .text
+// CHECK-NEXT: End Address: .text + 0x001b
 // CHECK-NEXT: Unwind Info Address: .xdata
 // CHECK-NEXT: Version: 1
 // CHECK-NEXT: Flags: 1 UNW_ExceptionHandler
@@ -20,8 +20,8 @@
 // CHECK-NEXT: 0x04: UOP_AllocSmall 24
 // CHECK-NEXT: 0x00: UOP_PushMachFrame w/o error code
 // CHECK:      Function Table:
-// CHECK-NEXT: Start Address: func + 0x0012
-// CHECK-NEXT: End Address: func + 0x0012
+// CHECK-NEXT: Start Address: .text + 0x0012
+// CHECK-NEXT: End Address: .text + 0x0012
 // CHECK-NEXT: Unwind Info Address: .xdata + 0x001c
 // CHECK-NEXT: Version: 1
 // CHECK-NEXT: Flags: 4 UNW_ChainInfo
@@ -29,8 +29,8 @@
 // CHECK-NEXT: Number of Codes: 0
 // CHECK-NEXT: No frame pointer used
 // CHECK:      Function Table:
-// CHECK-NEXT: Start Address: smallFunc
-// CHECK-NEXT: End Address: smallFunc + 0x0001
+// CHECK-NEXT: Start Address: .text + 0x001b
+// CHECK-NEXT: End Address: .text + 0x001c
 // CHECK-NEXT: Unwind Info Address: .xdata + 0x002c
 // CHECK-NEXT: Version: 1
 // CHECK-NEXT: Flags: 0
@@ -38,8 +38,8 @@
 // CHECK-NEXT: Number of Codes: 0
 // CHECK-NEXT: No frame pointer used
 // CHECK:      Function Table:
-// CHECK-NEXT: Start Address: allocFunc
-// CHECK-NEXT: End Address: allocFunc + 0x001d
+// CHECK-NEXT: Start Address: .text + 0x001c
+// CHECK-NEXT: End Address: .text + 0x0039
 // CHECK-NEXT: Unwind Info Address: .xdata + 0x0034
 // CHECK-NEXT: Version: 1
 // CHECK-NEXT: Flags: 0
@@ -90,9 +90,9 @@ smallFunc:
     .seh_endproc
 
 // Function with big stack allocation.
-    .globl allocFunc
+    .globl smallFunc
     .def allocFunc; .scl 2; .type 32; .endef
-    .seh_proc allocFunc
+    .seh_proc smallFunc
 allocFunc:
     .seh_pushframe @code
     subq $65520, %rsp