derek.holloway
7502bf64a4
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294 lines
11 KiB
ArmAsm
294 lines
11 KiB
ArmAsm
# REQUIRES: loongarch
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax a.s -o a.64.o
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# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax c.s -o c.64.o
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# RUN: ld.lld --relax -shared -soname=c.64.so c.64.o -o c.64.so
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## Test the TLSDESC relaxation.
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# RUN: ld.lld --relax -shared -z now a.64.o c.64.o -o a.64.so
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# RUN: llvm-readobj -r -x .got a.64.so | FileCheck --check-prefix=GD64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -dr -h a.64.so | FileCheck %s --check-prefix=GD64
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## Transition from TLSDESC to IE/LE. Also check --emit-relocs.
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# RUN: ld.lld -e 0 -z now --emit-relocs a.64.o c.64.o -o a.64.le
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# RUN: llvm-readobj -r -x .got a.64.le 2>&1 | FileCheck --check-prefix=LE64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -dr -h a.64.le | FileCheck %s --check-prefix=LE64
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# RUN: ld.lld --no-relax -e 0 -z now a.64.o c.64.o -o a.64.le.norelax
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# RUN: llvm-objdump --no-show-raw-insn -d -h a.64.le.norelax | FileCheck %s --check-prefix=LE64-NORELAX
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# RUN: ld.lld --relax -e 0 -z now --emit-relocs a.64.o c.64.so -o a.64.ie
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# RUN: llvm-readobj -r -x .got a.64.ie | FileCheck --check-prefix=IE64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -dr -h a.64.ie | FileCheck %s --check-prefix=IE64
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# RUN: ld.lld --no-relax -e 0 -z now a.64.o c.64.so -o a.64.ie.norelax
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# RUN: llvm-objdump --no-show-raw-insn -d -h a.64.ie.norelax | FileCheck %s --check-prefix=IE64-NORELAX
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# GD64-RELA: .rela.dyn {
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# GD64-RELA-NEXT: 0x20460 R_LARCH_TLS_DESC64 - 0x7FF
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# GD64-RELA-NEXT: 0x20430 R_LARCH_TLS_DESC64 a 0x0
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# GD64-RELA-NEXT: 0x20440 R_LARCH_TLS_DESC64 c 0x0
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# GD64-RELA-NEXT: 0x20450 R_LARCH_TLS_DESC64 d 0x0
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# GD64-RELA-NEXT: }
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# GD64-RELA: Hex dump of section '.got':
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# GD64-RELA-NEXT: 0x00020430 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020440 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020450 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020460 00000000 00000000 00000000 00000000 .
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# GD64: .got 00000040 0000000000020430
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## &.got[a]-. = 0x20430 - 0x10318 = 16454<<2
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# GD64: 10318: pcaddi $a0, 16454
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a1, $a0, $tp
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## &.got[b]-. = 0x20430+48 - 0x10328: 0x10 pages, page offset 0x460
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## R_LARCH_RELAX does not appear in pairs. No relaxation.
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# GD64: 10328: pcalau12i $a0, 16
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# GD64-NEXT: addi.d $a0, $a0, 1120
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x20430+16 - 0x1033c: 0x10 pages, page offset 0x440
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## Without R_LARCH_RELAX relocation. No relaxation.
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# GD64: 1033c: pcalau12i $a0, 16
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# GD64-NEXT: addi.d $t0, $zero, 0
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# GD64-NEXT: addi.d $a0, $a0, 1088
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# GD64-NEXT: addi.d $t0, $t0, 1
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: addi.d $t0, $t0, 1
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x20430+32 - 0x1035c = 16445<<2
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# GD64: 1035c: pcaddi $a0, 16445
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a4, $a0, $tp
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# LE64-RELA: could not find section '.got'
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## a@tprel = 0x8
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# LE64: 20158: ori $a0, $zero, 8
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 a
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 a
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_LD a
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_CALL a
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: add.d $a1, $a0, $tp
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## b@tprel = 0x7ff
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# LE64: 20160: nop
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 b
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 b
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# LE64-NEXT: nop
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# LE64-NEXT: R_LARCH_TLS_DESC_LD b
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# LE64-NEXT: ori $a0, $zero, 2047
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# LE64-NEXT: R_LARCH_TLS_DESC_CALL b
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# LE64-NEXT: add.d $a2, $a0, $tp
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## c@tprel = 0x800
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## Without R_LARCH_RELAX relocation. No relaxation.
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# LE64: 20170: nop
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 c
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# LE64-NEXT: addi.d $t0, $zero, 0
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# LE64-NEXT: nop
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 c
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# LE64-NEXT: addi.d $t0, $t0, 1
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# LE64-NEXT: nop
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# LE64-NEXT: R_LARCH_TLS_DESC_LD c
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# LE64-NEXT: addi.d $t0, $t0, 1
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# LE64-NEXT: ori $a0, $zero, 2048
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# LE64-NEXT: R_LARCH_TLS_DESC_CALL c
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# LE64-NEXT: add.d $a3, $a0, $tp
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## d@tprel = 0x1000
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# LE64: 20190: lu12i.w $a0, 1
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 d
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 d
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# LE64-NEXT: R_LARCH_RELAX *ABS*
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# LE64-NEXT: R_LARCH_TLS_DESC_LD d
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# LE64-NEXT: ori $a0, $a0, 0
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# LE64-NEXT: R_LARCH_TLS_DESC_CALL d
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# LE64-NEXT: add.d $a4, $a0, $tp
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## a@tprel = 0x8
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# LE64-NORELAX: 20158: nop
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: ori $a0, $zero, 8
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# LE64-NORELAX-NEXT: add.d $a1, $a0, $tp
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## b@tprel = 0x7ff
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# LE64-NORELAX: 2016c: nop
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: ori $a0, $zero, 2047
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# LE64-NORELAX-NEXT: add.d $a2, $a0, $tp
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## c@tprel = 0x800
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## Without R_LARCH_RELAX relocation. No relaxation.
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# LE64-NORELAX: 20180: nop
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# LE64-NORELAX-NEXT: addi.d $t0, $zero, 0
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: addi.d $t0, $t0, 1
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: addi.d $t0, $t0, 1
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# LE64-NORELAX-NEXT: ori $a0, $zero, 2048
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# LE64-NORELAX-NEXT: add.d $a3, $a0, $tp
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## d@tprel = 0x1000
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# LE64-NORELAX: 201a0: nop
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# LE64-NORELAX-NEXT: nop
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# LE64-NORELAX-NEXT: lu12i.w $a0, 1
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# LE64-NORELAX-NEXT: ori $a0, $a0, 0
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# LE64-NORELAX-NEXT: add.d $a4, $a0, $tp
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# IE64-RELA: .rela.dyn {
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# IE64-RELA-NEXT: 0x303F0 R_LARCH_TLS_TPREL64 c 0x0
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# IE64-RELA-NEXT: 0x303F8 R_LARCH_TLS_TPREL64 d 0x0
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# IE64-RELA-NEXT: }
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# IE64-RELA: Hex dump of section '.got':
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# IE64-RELA-NEXT: 0x000303f0 00000000 00000000 00000000 00000000 .
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# IE64: .got 00000010 00000000000303f0
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## a and b are optimized to use LE. c and d are optimized to IE.
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## a@tprel = 0x8
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# IE64: 202c8: ori $a0, $zero, 8
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 a
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 a
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_LD a
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_CALL a
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: add.d $a1, $a0, $tp
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## b@tprel = 0x7ff
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# IE64: 202d0: nop
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 b
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 b
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# IE64-NEXT: nop
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# IE64-NEXT: R_LARCH_TLS_DESC_LD b
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# IE64-NEXT: ori $a0, $zero, 2047
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# IE64-NEXT: R_LARCH_TLS_DESC_CALL b
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# IE64-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x303f0 - 0x202f0: 0x10 pages, page offset 0x3f0
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## Without R_LARCH_RELAX relocation. No relaxation.
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# IE64: 202e0: nop
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 c
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# IE64-NEXT: addi.d $t0, $zero, 0
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# IE64-NEXT: nop
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 c
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# IE64-NEXT: addi.d $t0, $t0, 1
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# IE64-NEXT: pcalau12i $a0, 16
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# IE64-NEXT: R_LARCH_TLS_DESC_LD c
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# IE64-NEXT: addi.d $t0, $t0, 1
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# IE64-NEXT: ld.d $a0, $a0, 1008
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# IE64-NEXT: R_LARCH_TLS_DESC_CALL c
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# IE64-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x303f0+8 - 0x20300: 0x10 pages, page offset 0x3f8
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# IE64: 20300: pcalau12i $a0, 16
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_HI20 d
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_PC_LO12 d
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# IE64-NEXT: R_LARCH_RELAX *ABS*
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# IE64-NEXT: R_LARCH_TLS_DESC_LD d
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# IE64-NEXT: ld.d $a0, $a0, 1016
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# IE64-NEXT: R_LARCH_TLS_DESC_CALL d
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# IE64-NEXT: add.d $a4, $a0, $tp
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# IE64-NORELAX: .got 00000010 0000000000030408
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## a@tprel = 0x8
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# IE64-NORELAX: 202c8: nop
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: ori $a0, $zero, 8
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# IE64-NORELAX-NEXT: add.d $a1, $a0, $tp
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## b@tprel = 0x7ff
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# IE64-NORELAX: 202dc: nop
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: ori $a0, $zero, 2047
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# IE64-NORELAX-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x30408 - 0x20300: 0x10 pages, page offset 0x408
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## Without R_LARCH_RELAX relocation. No relaxation.
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# IE64-NORELAX: 202f0: nop
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# IE64-NORELAX-NEXT: addi.d $t0, $zero, 0
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: addi.d $t0, $t0, 1
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# IE64-NORELAX-NEXT: pcalau12i $a0, 16
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# IE64-NORELAX-NEXT: addi.d $t0, $t0, 1
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# IE64-NORELAX-NEXT: ld.d $a0, $a0, 1032
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# IE64-NORELAX-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x30408+8 - 0x20318: 0x10 pages, page offset 0x410
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# IE64-NORELAX: 20310: nop
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# IE64-NORELAX-NEXT: nop
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# IE64-NORELAX-NEXT: pcalau12i $a0, 16
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# IE64-NORELAX-NEXT: ld.d $a0, $a0, 1040
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# IE64-NORELAX-NEXT: add.d $a4, $a0, $tp
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#--- a.s
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la.tls.desc $a0, a
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add.d $a1, $a0, $tp
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# ADDI.D does not have R_LARCH_RELAX. No relaxation when it is not optimized to IE/LE (--shared).
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pcalau12i $a0, %desc_pc_hi20(b)
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.reloc .-4, R_LARCH_RELAX, 0
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addi.d $a0, $a0, %desc_pc_lo12(b)
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ld.d $ra, $a0, %desc_ld(b)
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jirl $ra, $ra, %desc_call(b)
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add.d $a2, $a0, $tp
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# TLSDESC to LE. No relaxation.
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pcalau12i $a0, %desc_pc_hi20(c)
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addi.d $t0, $zero, 0
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addi.d $a0, $a0, %desc_pc_lo12(c)
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addi.d $t0, $t0, 1
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ld.d $ra, $a0, %desc_ld(c)
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addi.d $t0, $t0, 1
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jirl $ra, $ra, %desc_call(c)
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add.d $a3, $a0, $tp
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# PCALAU12I and ADDI.D have R_LARCH_RELAX. We perform relaxation.
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pcalau12i $a0, %desc_pc_hi20(d)
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.reloc .-4, R_LARCH_RELAX, 0
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addi.d $a0, $a0, %desc_pc_lo12(d)
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.reloc .-4, R_LARCH_RELAX, 0
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ld.d $ra, $a0, %desc_ld(d)
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jirl $ra, $ra, %desc_call(d)
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add.d $a4, $a0, $tp
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.section .tbss,"awT",@nobits
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.globl a
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.zero 8
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a:
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.zero 2039 ## Place b at 0x7ff
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b:
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.zero 1
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#--- c.s
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.section .tbss,"awT",@nobits
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.globl c, d
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c:
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.zero 2048 ## Place d at 0x1000
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d:
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.zero 4
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