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# RUN: rm -rf %t && mkdir -p %t
# RUN: llvm-mc -triple=x86_64-unknown-linux -position-independent \
# RUN: -filetype=obj -o %t/elf_got_plt_opt.o %s
# RUN: llvm-jitlink -noexec \
# RUN: -slab-allocate 100Kb -slab-address 0xfff00000 -slab-page-size 4096 \
# RUN: -abs extern_in_range32=0xffe00000 \
# RUN: -check %s %t/elf_got_plt_opt.o
#
.text
.file "testcase.c"
# Empty main entry point.
.globl main
.p2align 4, 0x90
.type main,@function
main:
retq
.size main, .-main
# Test optimization of transforming "call *foo@GOTPCREL(%rip)" to "addr call foo"
# We need check both the target address and the instruction opcodes
# jitlink-check: decode_operand(test_call_gotpcrelx, 0)[31:0] = extern_in_range32
# jitlink-check: *{1}test_call_gotpcrelx = 0x67
# jitlink-check: *{1}test_call_gotpcrelx+1 = 0xe8
.globl test_call_gotpcrelx
.p2align 4, 0x90
.type test_call_gotpcrelx,@function
test_call_gotpcrelx:
call *extern_in_range32@GOTPCREL(%rip)
.size test_call_gotpcrelx, .-test_call_gotpcrelx
# Test optimization of transforming "jmp *foo@GOTPCREL(%rip)" to "jmp foo ; nop"
# We need check both the target address and the instruction opcodes
# jitlink-check: decode_operand(test_call_gotpcrelx, 0)[31:0] = extern_in_range32
# jitlink-check: *{1}test_jmp_gotpcrelx = 0xe9
# jitlink-check: *{1}test_jmp_gotpcrelx+5 = 0x90
.globl test_jmp_gotpcrelx
.p2align 4, 0x90
.type test_jmp_gotpcrelx,@function
test_jmp_gotpcrelx:
jmp *extern_in_range32@GOTPCREL(%rip)
.size test_jmp_gotpcrelx, .-test_jmp_gotpcrelx
# Check R_X86_64_PLT32 handling with a call to an external. This produces a
# Branch32ToStub edge, because externals are not defined locally. During
# resolution, the target turns out to be in-range from the callsite and so the
# edge is relaxed in post-allocation optimization.
#
# jitlink-check: decode_operand(test_call_extern, 0) = \
# jitlink-check: extern_in_range32 - next_pc(test_call_extern)
.globl test_call_extern
.p2align 4, 0x90
.type test_call_extern,@function
test_call_extern:
callq extern_in_range32@plt
.size test_call_extern, .-test_call_extern
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