[PATCH] D51199: CodeGen: Add two more conditions for adding symbols to the address-significance table.
Peter Collingbourne via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Aug 24 13:38:12 PDT 2018
This revision was automatically updated to reflect the committed changes.
Closed by commit rL340648: CodeGen: Add two more conditions for adding symbols to the address-significance… (authored by pcc, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D51199?vs=162303&id=162466#toc
Repository:
rL LLVM
https://reviews.llvm.org/D51199
Files:
llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
llvm/trunk/test/CodeGen/X86/addrsig.ll
Index: llvm/trunk/test/CodeGen/X86/addrsig.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/addrsig.ll
+++ llvm/trunk/test/CodeGen/X86/addrsig.ll
@@ -7,6 +7,18 @@
; CHECK: .addrsig_sym f1
define void @f1() {
+ %f1 = bitcast void()* @f1 to i8*
+ %f2 = bitcast void()* @f2 to i8*
+ %f3 = bitcast void()* @f3 to i8*
+ %g1 = bitcast i32* @g1 to i8*
+ %g2 = bitcast i32* @g2 to i8*
+ %g3 = bitcast i32* @g3 to i8*
+ %dllimport = bitcast i32* @dllimport to i8*
+ %tls = bitcast i32* @tls to i8*
+ %a1 = bitcast i32* @a1 to i8*
+ %a2 = bitcast i32* @a2 to i8*
+ %i1 = bitcast void()* @i1 to i8*
+ %i2 = bitcast void()* @i2 to i8*
unreachable
}
@@ -25,6 +37,12 @@
; CHECK-NOT: .addrsig_sym g3
@g3 = external unnamed_addr global i32
+; CHECK-NOT: .addrsig_sym unref
+ at unref = external global i32
+
+; CHECK-NOT: .addrsig_sym dllimport
+ at dllimport = external dllimport global i32
+
; CHECK-NOT: .addrsig_sym tls
@tls = thread_local global i32 0
Index: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
===================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1542,7 +1542,8 @@
// Emit address-significance attributes for all globals.
OutStreamer->EmitAddrsig();
for (const GlobalValue &GV : M.global_values())
- if (!GV.isThreadLocal() && !GV.getName().startswith("llvm.") &&
+ if (!GV.use_empty() && !GV.isThreadLocal() &&
+ !GV.hasDLLImportStorageClass() && !GV.getName().startswith("llvm.") &&
!GV.hasAtLeastLocalUnnamedAddr())
OutStreamer->EmitAddrsigSym(getSymbol(&GV));
}
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