[Sparc] invalid adjustments in TLS_LE/TLS_LDO relocations removed

Summary:
Some SPARC TLS relocations were applying nontrivial adjustments
to zero value, leading to unexpected non-zero values in ELF and then
Solaris linker failures.

Getting rid of these adjustments.

Fixes PR33825.

Reviewers: rafael, asb, jyknight

Subscribers: joerg, jyknight, llvm-commits

Differential Revision: https://reviews.llvm.org/D35567

llvm-svn: 308978

1 files changed, 7 insertions, 8 deletions

diff --git a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
index 0d021d67033..0a72a443821 100644
--- a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
+++ b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
@@ -61,14 +61,6 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
   case Sparc::fixup_sparc_lo10:
     return Value & 0x3ff;
 
-  case Sparc::fixup_sparc_tls_ldo_hix22:
-  case Sparc::fixup_sparc_tls_le_hix22:
-    return (~Value >> 10) & 0x3fffff;
-
-  case Sparc::fixup_sparc_tls_ldo_lox10:
-  case Sparc::fixup_sparc_tls_le_lox10:
-    return (~(~Value & 0x3ff)) & 0x1fff;
-
   case Sparc::fixup_sparc_h44:
     return (Value >> 22) & 0x3fffff;
 
@@ -84,6 +76,13 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) {
   case Sparc::fixup_sparc_hm:
     return (Value >> 32) & 0x3ff;
 
+  case Sparc::fixup_sparc_tls_ldo_hix22:
+  case Sparc::fixup_sparc_tls_le_hix22:
+  case Sparc::fixup_sparc_tls_ldo_lox10:
+  case Sparc::fixup_sparc_tls_le_lox10:
+    assert(Value == 0 && "Sparc TLS relocs expect zero Value");
+    return 0;
+
   case Sparc::fixup_sparc_tls_gd_add:
   case Sparc::fixup_sparc_tls_gd_call:
   case Sparc::fixup_sparc_tls_ldm_add: