[llvm] r239817 - [mips][ias] Expand on r238751 to cover as many relocs as possible.
Daniel Sanders
daniel.sanders at imgtec.com
Tue Jun 16 06:46:26 PDT 2015
Author: dsanders
Date: Tue Jun 16 08:46:26 2015
New Revision: 239817
URL: http://llvm.org/viewvc/llvm-project?rev=239817&view=rev
Log:
[mips][ias] Expand on r238751 to cover as many relocs as possible.
Summary:
Relocs that can be converted from absolute to PC-relative now do so if IsPCRel
is true. Relocs that require PC-relative now call llvm_unreachable() if IsPCRel
is false and similarly those that require absolute assert that IsPCRel is false.
Note that while it looks like some relocs (e.g. R_MIPS_26) can be converted into
the MIPS32r6/MIPS64r6 relocs (R_MIPS_PC*_S2), it isn't actually valid to do so.
Placeholders have been left in the testcase for unsupported relocs and relocs
that cannot be generated at the moment.
Reviewers: vkalintiris
Reviewed By: vkalintiris
Subscribers: llvm-commits, rafael
Differential Revision: http://reviews.llvm.org/D10184
Removed:
llvm/trunk/test/MC/Mips/mips-relocations.s
Modified:
llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
llvm/trunk/test/MC/Mips/relocation.s
Modified: llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp?rev=239817&r1=239816&r2=239817&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp Tue Jun 16 08:46:26 2015
@@ -64,13 +64,47 @@ MipsELFObjectWriter::~MipsELFObjectWrite
unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
const MCFixup &Fixup,
bool IsPCRel) const {
- // determine the type of the relocation
+ // Determine the type of the relocation.
unsigned Kind = (unsigned)Fixup.getKind();
switch (Kind) {
+ case Mips::fixup_Mips_16:
+ case FK_Data_2:
+ return IsPCRel ? ELF::R_MIPS_PC16 : ELF::R_MIPS_16;
case Mips::fixup_Mips_32:
case FK_Data_4:
return IsPCRel ? ELF::R_MIPS_PC32 : ELF::R_MIPS_32;
+ }
+
+ if (IsPCRel) {
+ switch (Kind) {
+ case Mips::fixup_Mips_Branch_PCRel:
+ case Mips::fixup_Mips_PC16:
+ return ELF::R_MIPS_PC16;
+ case Mips::fixup_MICROMIPS_PC7_S1:
+ return ELF::R_MICROMIPS_PC7_S1;
+ case Mips::fixup_MICROMIPS_PC10_S1:
+ return ELF::R_MICROMIPS_PC10_S1;
+ case Mips::fixup_MICROMIPS_PC16_S1:
+ return ELF::R_MICROMIPS_PC16_S1;
+ case Mips::fixup_MIPS_PC19_S2:
+ return ELF::R_MIPS_PC19_S2;
+ case Mips::fixup_MIPS_PC18_S3:
+ return ELF::R_MIPS_PC18_S3;
+ case Mips::fixup_MIPS_PC21_S2:
+ return ELF::R_MIPS_PC21_S2;
+ case Mips::fixup_MIPS_PC26_S2:
+ return ELF::R_MIPS_PC26_S2;
+ case Mips::fixup_MIPS_PCHI16:
+ return ELF::R_MIPS_PCHI16;
+ case Mips::fixup_MIPS_PCLO16:
+ return ELF::R_MIPS_PCLO16;
+ }
+
+ llvm_unreachable("invalid PC-relative fixup kind!");
+ }
+
+ switch (Kind) {
case Mips::fixup_Mips_64:
case FK_Data_8:
return ELF::R_MIPS_64;
@@ -110,9 +144,6 @@ unsigned MipsELFObjectWriter::GetRelocTy
return ELF::R_MIPS_TLS_DTPREL_HI16;
case Mips::fixup_Mips_DTPREL_LO:
return ELF::R_MIPS_TLS_DTPREL_LO16;
- case Mips::fixup_Mips_Branch_PCRel:
- case Mips::fixup_Mips_PC16:
- return ELF::R_MIPS_PC16;
case Mips::fixup_Mips_GOT_PAGE:
return ELF::R_MIPS_GOT_PAGE;
case Mips::fixup_Mips_GOT_OFST:
@@ -153,12 +184,6 @@ unsigned MipsELFObjectWriter::GetRelocTy
return ELF::R_MICROMIPS_LO16;
case Mips::fixup_MICROMIPS_GOT16:
return ELF::R_MICROMIPS_GOT16;
- case Mips::fixup_MICROMIPS_PC7_S1:
- return ELF::R_MICROMIPS_PC7_S1;
- case Mips::fixup_MICROMIPS_PC10_S1:
- return ELF::R_MICROMIPS_PC10_S1;
- case Mips::fixup_MICROMIPS_PC16_S1:
- return ELF::R_MICROMIPS_PC16_S1;
case Mips::fixup_MICROMIPS_CALL16:
return ELF::R_MICROMIPS_CALL16;
case Mips::fixup_MICROMIPS_GOT_DISP:
@@ -179,19 +204,8 @@ unsigned MipsELFObjectWriter::GetRelocTy
return ELF::R_MICROMIPS_TLS_TPREL_HI16;
case Mips::fixup_MICROMIPS_TLS_TPREL_LO16:
return ELF::R_MICROMIPS_TLS_TPREL_LO16;
- case Mips::fixup_MIPS_PC19_S2:
- return ELF::R_MIPS_PC19_S2;
- case Mips::fixup_MIPS_PC18_S3:
- return ELF::R_MIPS_PC18_S3;
- case Mips::fixup_MIPS_PC21_S2:
- return ELF::R_MIPS_PC21_S2;
- case Mips::fixup_MIPS_PC26_S2:
- return ELF::R_MIPS_PC26_S2;
- case Mips::fixup_MIPS_PCHI16:
- return ELF::R_MIPS_PCHI16;
- case Mips::fixup_MIPS_PCLO16:
- return ELF::R_MIPS_PCLO16;
}
+
llvm_unreachable("invalid fixup kind!");
}
Removed: llvm/trunk/test/MC/Mips/mips-relocations.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/mips-relocations.s?rev=239816&view=auto
==============================================================================
--- llvm/trunk/test/MC/Mips/mips-relocations.s (original)
+++ llvm/trunk/test/MC/Mips/mips-relocations.s (removed)
@@ -1,40 +0,0 @@
-# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding -mcpu=mips32r2 | FileCheck %s
-# Check that the assembler can handle the documented syntax
-# for relocations.
-# CHECK: lui $2, %hi(_gp_disp) # encoding: [A,A,0x02,0x3c]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at ABS_HI, kind: fixup_Mips_HI16
-# CHECK: addiu $2, $2, %lo(_gp_disp) # encoding: [A,A,0x42,0x24]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at ABS_LO, kind: fixup_Mips_LO16
-# CHECK: lw $25, %call16(strchr)($gp) # encoding: [A,A,0x99,0x8f]
-# CHECK: # fixup A - offset: 0, value: strchr at GOT_CALL, kind: fixup_Mips_CALL16
-# CHECK: lw $3, %got(loop_1)($2) # encoding: [A,A,0x43,0x8c]
-# CHECK: # fixup A - offset: 0, value: loop_1 at GOT, kind: fixup_Mips_GOT_Local
-# CHECK: lui $2, %dtprel_hi(_gp_disp) # encoding: [A,A,0x02,0x3c]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at DTPREL_HI, kind: fixup_Mips_DTPREL_HI
-# CHECK: addiu $2, $2, %dtprel_lo(_gp_disp) # encoding: [A,A,0x42,0x24]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at DTPREL_LO, kind: fixup_Mips_DTPREL_LO
-# CHECK: lw $3, %got(loop_1)($2) # encoding: [A,A,0x43,0x8c]
-# CHECK: # fixup A - offset: 0, value: loop_1 at GOT, kind: fixup_Mips_GOT_Local
-# CHECK: lw $4, %got_disp(loop_2)($3) # encoding: [A,A,0x64,0x8c]
-# CHECK: # fixup A - offset: 0, value: loop_2 at GOT_DISP, kind: fixup_Mips_GOT_DISP
-# CHECK: lw $5, %got_page(loop_3)($4) # encoding: [A,A,0x85,0x8c]
-# CHECK: # fixup A - offset: 0, value: loop_3 at GOT_PAGE, kind: fixup_Mips_GOT_PAGE
-# CHECK: lw $6, %got_ofst(loop_4)($5) # encoding: [A,A,0xa6,0x8c]
-# CHECK: # fixup A - offset: 0, value: loop_4 at GOT_OFST, kind: fixup_Mips_GOT_OFST
-# CHECK: lui $2, %tprel_hi(_gp_disp) # encoding: [A,A,0x02,0x3c]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at TPREL_HI, kind: fixup_Mips_TPREL_HI
-# CHECK: addiu $2, $2, %tprel_lo(_gp_disp) # encoding: [A,A,0x42,0x24]
-# CHECK: # fixup A - offset: 0, value: _gp_disp at TPREL_LO, kind: fixup_Mips_TPREL_LO
-
- lui $2, %hi(_gp_disp)
- addiu $2, $2, %lo(_gp_disp)
- lw $25, %call16(strchr)($gp)
- lw $3, %got(loop_1)($2)
- lui $2, %dtprel_hi(_gp_disp)
- addiu $2, $2, %dtprel_lo(_gp_disp)
- lw $3, %got(loop_1)($2)
- lw $4, %got_disp(loop_2)($3)
- lw $5, %got_page(loop_3)($4)
- lw $6, %got_ofst(loop_4)($5)
- lui $2, %tprel_hi(_gp_disp)
- addiu $2, $2, %tprel_lo(_gp_disp)
Modified: llvm/trunk/test/MC/Mips/relocation.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/relocation.s?rev=239817&r1=239816&r2=239817&view=diff
==============================================================================
--- llvm/trunk/test/MC/Mips/relocation.s (original)
+++ llvm/trunk/test/MC/Mips/relocation.s Tue Jun 16 08:46:26 2015
@@ -1,10 +1,209 @@
-// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux < %s | llvm-readobj -r | FileCheck %s
+// RUN: llvm-mc -triple mips-unknown-linux < %s -show-encoding \
+// RUN: | FileCheck -check-prefix=ENCBE -check-prefix=FIXUP %s
+// RUN: llvm-mc -triple mipsel-unknown-linux < %s -show-encoding \
+// RUN: | FileCheck -check-prefix=ENCLE -check-prefix=FIXUP %s
+// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux < %s \
+// RUN: | llvm-readobj -r | FileCheck -check-prefix=RELOC %s
// Test that we produce the correct relocation.
// FIXME: move more relocation only tests here.
- .long foo
-// CHECK: R_MIPS_32 foo
+// Check prefixes:
+// RELOC - Check the relocation in the object.
+// FIXUP - Check the fixup on the instruction.
+// ENCBE - Check the big-endian encoding on the instruction.
+// ENCLE - Check the little-endian encoding on the instruction.
+// ????? - Placeholder. Relocation is defined but the way of generating it is
+// unknown.
+// FIXME - Placeholder. Generation method is known but doesn't work.
- .long foo-.
-// CHECK: R_MIPS_PC32 foo
+ .short foo // RELOC: R_MIPS_16 foo
+
+ .long foo // RELOC: R_MIPS_32 foo
+
+ // ?????: R_MIPS_REL32 foo
+
+ jal foo // RELOC: R_MIPS_26 foo
+ // ENCBE: jal foo # encoding: [0b000011AA,A,A,A]
+ // ENCLE: jal foo # encoding: [A,A,A,0b000011AA]
+ // FIXUP: # fixup A - offset: 0, value: foo, kind: fixup_Mips_26
+
+ addiu $2, $3, %hi(foo) // RELOC: R_MIPS_HI16 foo
+ // ENCBE: addiu $2, $3, %hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at ABS_HI, kind: fixup_Mips_HI16
+
+ addiu $2, $3, %lo(foo) // RELOC: R_MIPS_LO16 foo
+ // ENCBE: addiu $2, $3, %lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at ABS_LO, kind: fixup_Mips_LO16
+
+ addiu $2, $3, %gp_rel(foo) // RELOC: R_MIPS_GPREL16 foo
+ // ENCBE: addiu $2, $3, %gp_rel(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %gp_rel(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GPREL, kind: fixup_Mips_GPREL
+
+ // ?????: R_MIPS_LITERAL foo
+
+ addiu $2, $3, %got(foo) // RELOC: R_MIPS_GOT16 foo
+ // ENCBE: addiu $2, $3, %got(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT, kind: fixup_Mips_GOT_Local
+
+ .short foo-. // RELOC: R_MIPS_PC16 foo
+
+ addiu $2, $3, %call16(foo) // RELOC: R_MIPS_CALL16 foo
+ // ENCBE: addiu $2, $3, %call16(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %call16(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_CALL, kind: fixup_Mips_CALL16
+
+ .quad foo // RELOC: R_MIPS_64 foo
+
+ // ?????: R_MIPS_GPREL32 foo
+ // ?????: R_MIPS_UNUSED1 foo
+ // ?????: R_MIPS_UNUSED2 foo
+ // ?????: R_MIPS_UNUSED3 foo
+ // ?????: R_MIPS_SHIFT5 foo
+ // ?????: R_MIPS_SHIFT6 foo
+
+ addiu $2, $3, %got_disp(foo) // RELOC: R_MIPS_GOT_DISP foo
+ // ENCBE: addiu $2, $3, %got_disp(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got_disp(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_DISP, kind: fixup_Mips_GOT_DISP
+
+ addiu $2, $3, %got_page(foo) // RELOC: R_MIPS_GOT_PAGE foo
+ // ENCBE: addiu $2, $3, %got_page(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got_page(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_PAGE, kind: fixup_Mips_GOT_PAGE
+
+ addiu $2, $3, %got_ofst(foo) // RELOC: R_MIPS_GOT_OFST foo
+ // ENCBE: addiu $2, $3, %got_ofst(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got_ofst(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_OFST, kind: fixup_Mips_GOT_OFST
+
+ addiu $2, $3, %got_hi(foo) // RELOC: R_MIPS_GOT_HI16 foo
+ // ENCBE: addiu $2, $3, %got_hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got_hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_HI16, kind: fixup_Mips_GOT_HI16
+
+ addiu $2, $3, %got_lo(foo) // RELOC: R_MIPS_GOT_LO16 foo
+ // ENCBE: addiu $2, $3, %got_lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %got_lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOT_LO16, kind: fixup_Mips_GOT_LO16
+
+// addiu $2, $3, %neg(foo) // FIXME: R_MIPS_SUB foo
+ // ?????: R_MIPS_INSERT_A
+ // ?????: R_MIPS_INSERT_B
+ // ?????: R_MIPS_DELETE
+
+ .set mips64
+ daddiu $2, $3, %higher(foo) // RELOC: R_MIPS_HIGHER foo
+ // ENCBE: daddiu $2, $3, %higher(foo) # encoding: [0x64,0x62,A,A]
+ // ENCLE: daddiu $2, $3, %higher(foo) # encoding: [A,A,0x62,0x64]
+ // FIXUP: # fixup A - offset: 0, value: foo at HIGHER, kind: fixup_Mips_HIGHER
+
+ daddiu $2, $3, %highest(foo) // RELOC: R_MIPS_HIGHEST foo
+ // ENCBE: daddiu $2, $3, %highest(foo) # encoding: [0x64,0x62,A,A]
+ // ENCLE: daddiu $2, $3, %highest(foo) # encoding: [A,A,0x62,0x64]
+ // FIXUP: # fixup A - offset: 0, value: foo at HIGHEST, kind: fixup_Mips_HIGHEST
+
+ .set mips0
+ addiu $2, $3, %call_hi(foo) // RELOC: R_MIPS_CALL_HI16 foo
+ // ENCBE: addiu $2, $3, %call_hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %call_hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at CALL_HI16, kind: fixup_Mips_CALL_HI16
+
+ addiu $2, $3, %call_lo(foo) // RELOC: R_MIPS_CALL_LO16 foo
+ // ENCBE: addiu $2, $3, %call_lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %call_lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at CALL_LO16, kind: fixup_Mips_CALL_LO16
+
+ // ?????: R_MIPS_SCN_DISP foo
+ // ?????: R_MIPS_REL16 foo
+ // ?????: R_MIPS_ADD_IMMEDIATE foo
+ // ?????: R_MIPS_PJUMP foo
+ // ?????: R_MIPS_RELGOT foo
+// jalr $25 // ?????: R_MIPS_JALR foo
+
+ // ?????: R_MIPS_TLS_DTPMOD32 foo
+// .dtprelword foo // FIXME: R_MIPS_TLS_DTPREL32 foo
+ // ?????: R_MIPS_TLS_DTPMOD64 foo
+// .dtpreldword foo // FIXME: R_MIPS_TLS_DTPREL64 foo
+ addiu $2, $3, %tlsgd(foo) // RELOC: R_MIPS_TLS_GD foo
+ // ENCBE: addiu $2, $3, %tlsgd(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %tlsgd(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at TLSGD, kind: fixup_Mips_TLSGD
+
+ addiu $2, $3, %tlsldm(foo) // RELOC: R_MIPS_TLS_LDM foo
+ // ENCBE: addiu $2, $3, %tlsldm(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %tlsldm(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at TLSLDM, kind: fixup_Mips_TLSLDM
+
+ addiu $2, $3, %dtprel_hi(foo) // RELOC: R_MIPS_TLS_DTPREL_HI16 foo
+ // ENCBE: addiu $2, $3, %dtprel_hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %dtprel_hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at DTPREL_HI, kind: fixup_Mips_DTPREL_HI
+
+ addiu $2, $3, %dtprel_lo(foo) // RELOC: R_MIPS_TLS_DTPREL_LO16 foo
+ // ENCBE: addiu $2, $3, %dtprel_lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %dtprel_lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at DTPREL_LO, kind: fixup_Mips_DTPREL_LO
+
+ addiu $2, $3, %gottprel(foo) // RELOC: R_MIPS_TLS_GOTTPREL foo
+ // ENCBE: addiu $2, $3, %gottprel(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %gottprel(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at GOTTPREL, kind: fixup_Mips_GOTTPREL
+
+// .tprelword foo // FIXME: R_MIPS_TLS_TPREL32 foo
+// .tpreldword foo // FIXME: R_MIPS_TLS_TPREL64 foo
+ addiu $2, $3, %tprel_hi(foo) // RELOC: R_MIPS_TLS_TPREL_HI16 foo
+ // ENCBE: addiu $2, $3, %tprel_hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %tprel_hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at TPREL_HI, kind: fixup_Mips_TPREL_HI
+
+ addiu $2, $3, %tprel_lo(foo) // RELOC: R_MIPS_TLS_TPREL_LO16 foo
+ // ENCBE: addiu $2, $3, %tprel_lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %tprel_lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at TPREL_LO, kind: fixup_Mips_TPREL_LO
+
+ // ?????: R_MIPS_GLOB_DAT foo
+ .set mips32r6
+ beqzc $2, foo // RELOC: R_MIPS_PC21_S2 foo
+ // ENCBE: beqzc $2, foo # encoding: [0xd8,0b010AAAAA,A,A]
+ // ENCLE: beqzc $2, foo # encoding: [A,A,0b010AAAAA,0xd8]
+ // FIXUP: # fixup A - offset: 0, value: foo, kind: fixup_MIPS_PC21_S2
+
+ bc foo // RELOC: R_MIPS_PC26_S2 foo
+ // ENCBE: bc foo # encoding: [0b110010AA,A,A,A]
+ // ENCLE: bc foo # encoding: [A,A,A,0b110010AA]
+ // FIXUP: # fixup A - offset: 0, value: foo, kind: fixup_MIPS_PC26_S2
+
+ .set mips64r6
+ ldpc $2, foo // RELOC: R_MIPS_PC18_S3 foo
+ // ENCBE: ldpc $2, foo # encoding: [0xec,0b010110AA,A,A]
+ // ENCLE: ldpc $2, foo # encoding: [A,A,0b010110AA,0xec]
+ // FIXUP: # fixup A - offset: 0, value: foo, kind: fixup_Mips_PC18_S3
+
+ .set mips32r6
+ lwpc $2, foo // RELOC: R_MIPS_PC19_S2 foo
+ // ENCBE: lwpc $2, foo # encoding: [0xec,0b01001AAA,A,A]
+ // ENCLE: lwpc $2, foo # encoding: [A,A,0b01001AAA,0xec]
+ // FIXUP: # fixup A - offset: 0, value: foo, kind: fixup_MIPS_PC19_S2
+
+ addiu $2, $3, %pcrel_hi(foo) // RELOC: R_MIPS_PCHI16 foo
+ // ENCBE: addiu $2, $3, %pcrel_hi(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %pcrel_hi(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at PCREL_HI16, kind: fixup_MIPS_PCHI16
+
+ addiu $2, $3, %pcrel_lo(foo) // RELOC: R_MIPS_PCLO16 foo
+ // ENCBE: addiu $2, $3, %pcrel_lo(foo) # encoding: [0x24,0x62,A,A]
+ // ENCLE: addiu $2, $3, %pcrel_lo(foo) # encoding: [A,A,0x62,0x24]
+ // FIXUP: # fixup A - offset: 0, value: foo at PCREL_LO16, kind: fixup_MIPS_PCLO16
+
+ .set mips0
+ // FIXME: R_MIPS16_*
+ // ?????: R_MIPS_COPY foo
+ // ?????: R_MIPS_JUMP_SLOT foo
+ // FIXME: R_MICROMIPS_*
+ .long foo-. // RELOC: R_MIPS_PC32 foo
+// .ehword foo // FIXME: R_MIPS_EH foo
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