[PATCH] D24702: AArch64: Set shift bit of TLSLE HI12 add instruction
Lei Liu via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 19 19:42:00 PDT 2016
lliu0 updated this revision to Diff 71898.
lliu0 added a comment.
Set shift bit for R_AARCH64_TLSLD_ADD_DTPREL_HI12 as well.
Added test case.
https://reviews.llvm.org/D24702
Files:
lib/Target/AArch64/MCTargetDesc/AArch64MCCodeEmitter.cpp
test/MC/AArch64/tls-add-shift.s
Index: test/MC/AArch64/tls-add-shift.s
===================================================================
--- /dev/null
+++ test/MC/AArch64/tls-add-shift.s
@@ -0,0 +1,12 @@
+// RUN: llvm-mc -triple=aarch64-none-linux-gnu -filetype=obj < %s -o - | \
+// RUN: llvm-objdump -r -d - | FileCheck %s
+
+ // TLS add TPREL
+ add x2, x1, #:tprel_hi12:var
+// CHECK: add x2, x1, #0, lsl #12
+// CHECK-NEXT: R_AARCH64_TLSLE_ADD_TPREL_HI12 var
+
+ // TLS add DTPREL
+ add x4, x3, #:dtprel_hi12:var
+// CHECK: add x4, x3, #0, lsl #12
+// CHECK-NEXT: R_AARCH64_TLSLD_ADD_DTPREL_HI12 var
Index: lib/Target/AArch64/MCTargetDesc/AArch64MCCodeEmitter.cpp
===================================================================
--- lib/Target/AArch64/MCTargetDesc/AArch64MCCodeEmitter.cpp
+++ lib/Target/AArch64/MCTargetDesc/AArch64MCCodeEmitter.cpp
@@ -263,6 +263,12 @@
++MCNumFixups;
+ // Set the shift bit of the add instruction for relocation types
+ // R_AARCH64_TLSLE_ADD_TPREL_HI12 and R_AARCH64_TLSLD_ADD_DTPREL_HI12.
+ AArch64MCExpr::VariantKind RefKind = cast<AArch64MCExpr>(Expr)->getKind();
+ if (RefKind == AArch64MCExpr::VK_TPREL_HI12 ||
+ RefKind == AArch64MCExpr::VK_DTPREL_HI12)
+ ShiftVal = 12;
return ShiftVal == 0 ? 0 : (1 << ShiftVal);
}
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