[lld] r263669 - Don't create a got entry if we optimize it out.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Wed Mar 16 17:43:36 2016
New Revision: 263669

URL: http://llvm.org/viewvc/llvm-project?rev=263669&view=rev
Log:
Don't create a got entry if we optimize it out.

Added:
    lld/trunk/test/ELF/aarch64-got.s
Modified:
    lld/trunk/ELF/Target.cpp

Modified: lld/trunk/ELF/Target.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Target.cpp?rev=263669&r1=263668&r2=263669&view=diff
==============================================================================
--- lld/trunk/ELF/Target.cpp (original)
+++ lld/trunk/ELF/Target.cpp Wed Mar 16 17:43:36 2016
@@ -1319,8 +1319,9 @@ bool AArch64TargetInfo::needsCopyRelImpl
 
 bool AArch64TargetInfo::needsGot(uint32_t Type, SymbolBody &S) const {
   switch (Type) {
-  case R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
   case R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
+    return !canRelaxTls(Type, &S);
+  case R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
   case R_AARCH64_ADR_GOT_PAGE:
   case R_AARCH64_LD64_GOT_LO12_NC:
     return true;

Added: lld/trunk/test/ELF/aarch64-got.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/aarch64-got.s?rev=263669&view=auto
==============================================================================
--- lld/trunk/test/ELF/aarch64-got.s (added)
+++ lld/trunk/test/ELF/aarch64-got.s Wed Mar 16 17:43:36 2016
@@ -0,0 +1,18 @@
+# REQUIRES: aarch64
+# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %t.o
+# RUN: ld.lld %t.o -o %t
+# RUN: llvm-readobj -s %t | FileCheck %s
+
+# CHECK-NOT: Name: .got
+
+.globl _start
+_start:
+ adrp    x0, :gottprel:foo
+
+	.global foo
+ .section .tdata,"awT",%progbits
+ .align 2
+ .type foo, %object
+ .size foo, 4
+foo:
+ .word 5