derek.holloway
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91 lines
3.2 KiB
ArmAsm
91 lines
3.2 KiB
ArmAsm
## This test verifies that the pair pcalau12i + ld.w/d is relaxed/not relaxed
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## depending on the target symbol properties.
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# 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=loongarch32 -mattr=+32s,+relax symbols.s -o symbols.32.o
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# RUN: llvm-mc --filetype=obj --triple=loongarch64 -mattr=+relax symbols.s -o symbols.64.o
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# RUN: llvm-mc --filetype=obj --triple=loongarch32 -mattr=+32s,+relax abs.s -o abs.32.o
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# RUN: llvm-mc --filetype=obj --triple=loongarch64 -mattr=+relax abs.s -o abs.64.o
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# RUN: ld.lld --shared -Tlinker.t symbols.32.o abs.32.o -o symbols.32.so
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# RUN: ld.lld --shared -Tlinker.t symbols.64.o abs.64.o -o symbols.64.so
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# RUN: llvm-objdump -d --no-show-raw-insn symbols.32.so | FileCheck --check-prefixes=LIB %s
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# RUN: llvm-objdump -d --no-show-raw-insn symbols.64.so | FileCheck --check-prefixes=LIB %s
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# RUN: ld.lld -Tlinker.t -z undefs symbols.32.o abs.32.o -o symbols.32
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# RUN: ld.lld -Tlinker.t -z undefs symbols.64.o abs.64.o -o symbols.64
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# RUN: llvm-objdump -d --no-show-raw-insn symbols.32 | FileCheck --check-prefixes=EXE %s
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# RUN: llvm-objdump -d --no-show-raw-insn symbols.64 | FileCheck --check-prefixes=EXE %s
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## Symbol 'hidden_sym' is nonpreemptible, the relaxation should be applied.
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LIB: pcaddi $a0, [[#]]
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## Symbol 'global_sym' is preemptible, no relaxations should be applied.
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LIB-NEXT: pcalau12i $a1, 4
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LIB-NEXT: ld.{{[wd]}} $a1, $a1, [[#]]
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## Symbol 'undefined_sym' is undefined, no relaxations should be applied.
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LIB-NEXT: pcalau12i $a2, 4
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LIB-NEXT: ld.{{[wd]}} $a2, $a2, [[#]]
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## Symbol 'ifunc_sym' is STT_GNU_IFUNC, no relaxations should be applied.
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LIB-NEXT: pcalau12i $a3, 4
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LIB-NEXT: ld.{{[wd]}} $a3, $a3, [[#]]
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## Symbol 'abs_sym' is absolute, no relaxations should be applied.
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LIB-NEXT: pcalau12i $a4, 4
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LIB-NEXT: ld.{{[wd]}} $a4, $a4, [[#]]
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## Symbol 'hidden_sym' is nonpreemptible, the relaxation should be applied.
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EXE: pcaddi $a0, [[#]]
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## Symbol 'global_sym' is nonpreemptible, the relaxation should be applied.
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EXE-NEXT: pcaddi $a1, [[#]]
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## Symbol 'undefined_sym' is undefined, no relaxations should be applied.
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EXE-NEXT: pcalau12i $a2, 4
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EXE-NEXT: ld.{{[wd]}} $a2, $a2, [[#]]
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## Symbol 'ifunc_sym' is STT_GNU_IFUNC, no relaxations should be applied.
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EXE-NEXT: pcalau12i $a3, 4
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EXE-NEXT: ld.{{[wd]}} $a3, $a3, [[#]]
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## Symbol 'abs_sym' is absolute, relaxations may be applied in -no-pie mode.
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EXE-NEXT: pcaddi $a4, -[[#]]
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## The linker script ensures that .rodata and .text are near (>4M) so that
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## the pcalau12i+ld.w/d pair can be relaxed to pcaddi.
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#--- linker.t
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SECTIONS {
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.text 0x10000: { *(.text) }
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.rodata 0x14000: { *(.rodata) }
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}
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# This symbol is defined in a separate file to prevent the definition from
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# being folded into the instructions that reference it.
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#--- abs.s
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.global abs_sym
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.hidden abs_sym
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abs_sym = 0x1000
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#--- symbols.s
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.rodata
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.hidden hidden_sym
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hidden_sym:
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.word 10
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.global global_sym
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global_sym:
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.word 10
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.text
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.type ifunc_sym STT_GNU_IFUNC
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.hidden ifunc_sym
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ifunc_sym:
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nop
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.global _start
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_start:
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la.got $a0, hidden_sym
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la.got $a1, global_sym
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la.got $a2, undefined_sym
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la.got $a3, ifunc_sym
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la.got $a4, abs_sym
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