[llvm-objdump] Use the COFF export table for additional symbols

Most linked executables do not have a symbol table in COFF.
However, it is pretty typical to have some export entries.  Use those
entries to inform the disassembler about potential function definitions
and call targets.

llvm-svn: 253429

3 files changed, 10 insertions, 2 deletions

diff --git a/llvm/test/CodeGen/ARM/inlineasm-switch-mode.ll b/llvm/test/CodeGen/ARM/inlineasm-switch-mode.ll
index 65fea114d7d..6035612788d 100644
--- a/llvm/test/CodeGen/ARM/inlineasm-switch-mode.ll
+++ b/llvm/test/CodeGen/ARM/inlineasm-switch-mode.ll
@@ -15,8 +15,8 @@ define hidden i32 @bah(i8* %start) #0 align 2 {
 ; ARM: $t
 ; ARM-NEXT: 48 1c
 
-; THUMB: $a
+; THUMB: $a{{.*}}:
 ; THUMB-NEXT: 04 70
 ; THUMB-NEXT: 2d e5
-; THUMB: $t
+; THUMB: $t{{.*}}:
 ; THUMB-NEXT: 48 1c   adds    r0, r1, #1
diff --git a/llvm/test/tools/llvm-objdump/X86/Inputs/disassemble.dll.coff-i386 b/llvm/test/tools/llvm-objdump/X86/Inputs/disassemble.dll.coff-i386
new file mode 100755
index 00000000000..c0fbc880363
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/X86/Inputs/disassemble.dll.coff-i386
diff --git a/llvm/test/tools/llvm-objdump/X86/coff-disassemble-export.test b/llvm/test/tools/llvm-objdump/X86/coff-disassemble-export.test
new file mode 100644
index 00000000000..2f0b211815c
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/X86/coff-disassemble-export.test
@@ -0,0 +1,8 @@
+// RUN: llvm-objdump -d %p/Inputs/disassemble.dll.coff-i386 | \
+// RUN:   FileCheck %s
+
+// CHECK-LABEL: g:
+// CHECK: calll 8 <f>
+
+// CHECK-LABEL: f:
+// CHECK: calll -24 <g>