[llvm-commits] [llvm] r131687 - in /llvm/trunk: lib/MC/MCStreamer.cpp test/DebugInfo/pr9951.ll

[Rafael Espindola]

Author: rafael
Date: Thu May 19 17:05:56 2011
New Revision: 131687

URL: http://llvm.org/viewvc/llvm-project?rev=131687&view=rev
Log:
Looks like OS X assemblers (including MC) don't like

foo:
bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

Added:
    llvm/trunk/test/DebugInfo/pr9951.ll
Modified:
    llvm/trunk/lib/MC/MCStreamer.cpp

Modified: llvm/trunk/lib/MC/MCStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCStreamer.cpp?rev=131687&r1=131686&r2=131687&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCStreamer.cpp (original)
+++ llvm/trunk/lib/MC/MCStreamer.cpp Thu May 19 17:05:56 2011
@@ -43,7 +43,8 @@
 }
 
 const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
-  if (Context.getAsmInfo().hasAggressiveSymbolFolding())
+  if (Context.getAsmInfo().hasAggressiveSymbolFolding() ||
+      isa<MCSymbolRefExpr>(Expr))
     return Expr;
 
   MCSymbol *ABS = Context.CreateTempSymbol();

Added: llvm/trunk/test/DebugInfo/pr9951.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/pr9951.ll?rev=131687&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/pr9951.ll (added)
+++ llvm/trunk/test/DebugInfo/pr9951.ll Thu May 19 17:05:56 2011
@@ -0,0 +1,23 @@
+; RUN: llc -mtriple x86_64-apple-darwin10.0.0 -disable-cfi %s -o - | FileCheck %s
+
+define i32 @f() nounwind {
+entry:
+  ret i32 42
+}
+
+!llvm.dbg.sp = !{!0}
+
+!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"f", metadata !"f", metadata !"", metadata !1, i32 1, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 false, i32 ()* @f, null, null} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 589865, metadata !"/home/espindola/llvm/test.c", metadata !"/home/espindola/llvm/build-rust2", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"/home/espindola/llvm/test.c", metadata !"/home/espindola/llvm/build-rust2", metadata !"clang version 3.0 ()", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
+!4 = metadata !{metadata !5}
+!5 = metadata !{i32 589860, metadata !2, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
+
+
+; CHECK:      _f:                                     ## @f
+; CHECK-NEXT: Ltmp0:
+
+; CHECK:      Ltmp9 = (Ltmp3-Ltmp2)-0
+; CHECK-NEXT:	.long	Ltmp9
+; CHECK-NEXT:	.quad	Ltmp0