From f6163dc85691bbccccd029c607d1d5f0b2944fd9 Mon Sep 17 00:00:00 2001
From: Dale Johannesen <dalej@apple.com>
Date: Tue, 25 Aug 2009 00:16:14 +0000
Subject: [PATCH] Fix PR 4751, another difficulty with %a modifier on x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79961 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../X86/AsmPrinter/X86ATTAsmPrinter.cpp       |  4 ++++
 test/CodeGen/X86/asm-modifier.ll              | 20 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
index a2abbc20312..e1b6263a7ad 100644
--- a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
+++ b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
@@ -625,6 +625,10 @@ bool X86ATTAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
         O << MO.getImm();
         return false;
       } 
+      if (MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isSymbol()) {
+        printSymbolOperand(MO);
+        return false;
+      }
       if (MO.isReg()) {
         O << '(';
         printOperand(MI, OpNo);
diff --git a/test/CodeGen/X86/asm-modifier.ll b/test/CodeGen/X86/asm-modifier.ll
index 8bd5509e969..10a362f369a 100644
--- a/test/CodeGen/X86/asm-modifier.ll
+++ b/test/CodeGen/X86/asm-modifier.ll
@@ -19,3 +19,23 @@ entry:
   %asmtmp = tail call i16 asm "movw\09%gs:${1:a}, ${0:w}", "=r,ir,~{dirflag},~{fpsr},~{flags}"(i32 %address) nounwind ; <i16> [#uses=1]
   ret i16 %asmtmp
 }
+
+@n = global i32 42                                ; <i32*> [#uses=3]
+@y = common global i32 0                          ; <i32*> [#uses=3]
+
+define void @test3() nounwind {
+entry:
+; CHECK: test3:
+; CHECK: movl _n, %eax
+  call void asm sideeffect "movl ${0:a}, %eax", "ir,~{dirflag},~{fpsr},~{flags},~{eax}"(i32* @n) nounwind
+  ret void
+}
+
+define void @test4() nounwind {
+entry:
+; CHECK: test4:
+; CHECK: movl	L_y$non_lazy_ptr, %ecx
+; CHECK: movl (%ecx), %eax
+  call void asm sideeffect "movl ${0:a}, %eax", "ir,~{dirflag},~{fpsr},~{flags},~{eax}"(i32* @y) nounwind
+  ret void
+}