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[RISCV][NFC] Add test case to MC/RISCV/linker-relaxation.s showing incorrect relocations being emitted 

A follow-up patch will fix this case.

llvm-svn: 356736
This commit is contained in:
Alex Bradbury 2019-03-22 10:20:21 +00:00
parent 033f99a2e5
commit 4fdad7e30e
1 changed files with 28 additions and 12 deletions
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40
llvm/test/MC/RISCV/linker-relaxation.s
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@ -45,6 +45,7 @@ sb t1, %lo(foo)(a2)
# RELAX-FIXUP: fixup A - offset: 0, value: %lo(foo), kind: fixup_riscv_lo12_s
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
1:
auipc t1, %pcrel_hi(foo)
# NORELAX-RELOC: R_RISCV_PCREL_HI20 foo 0x0
# NORELAX-RELOC-NOT: R_RISCV_RELAX
@ -53,20 +54,20 @@ auipc t1, %pcrel_hi(foo)
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_hi(foo), kind: fixup_riscv_pcrel_hi20
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
addi t1, t1, %pcrel_lo(foo)
# NORELAX-RELOC: R_RISCV_PCREL_LO12_I foo 0x0
addi t1, t1, %pcrel_lo(1b)
# NORELAX-RELOC: R_RISCV_PCREL_LO12_I .Ltmp0 0x0
# NORELAX-RELOC-NOT: R_RISCV_RELAX
# RELAX-RELOC: R_RISCV_PCREL_LO12_I foo 0x0
# RELAX-RELOC: R_RISCV_PCREL_LO12_I .Ltmp0 0x0
# RELAX-RELOC: R_RISCV_RELAX - 0x0
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(foo), kind: fixup_riscv_pcrel_lo12_i
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(.Ltmp0), kind: fixup_riscv_pcrel_lo12_i
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
sb t1, %pcrel_lo(foo)(a2)
# NORELAX-RELOC: R_RISCV_PCREL_LO12_S foo 0x0
sb t1, %pcrel_lo(1b)(a2)
# NORELAX-RELOC: R_RISCV_PCREL_LO12_S .Ltmp0 0x0
# NORELAX-RELOC-NOT: R_RISCV_RELAX
# RELAX-RELOC: R_RISCV_PCREL_LO12_S foo 0x0
# RELAX-RELOC: R_RISCV_PCREL_LO12_S .Ltmp0 0x0
# RELAX-RELOC: R_RISCV_RELAX - 0x0
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(foo), kind: fixup_riscv_pcrel_lo12_s
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(.Ltmp0), kind: fixup_riscv_pcrel_lo12_s
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
@ -111,6 +112,7 @@ sb t1, %lo(bar)(a2)
# RELAX-FIXUP: fixup A - offset: 0, value: %lo(bar), kind: fixup_riscv_lo12_s
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
2:
auipc t1, %pcrel_hi(bar)
# NORELAX-RELOC-NOT: R_RISCV_PCREL_HI20
# NORELAX-RELOC-NOT: R_RISCV_RELAX
@ -119,8 +121,22 @@ auipc t1, %pcrel_hi(bar)
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_hi(bar), kind: fixup_riscv_pcrel_hi20
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
# TODO/FIXME: %pcrel_lo(bar) will produce an error finding the corresponding
# %pcrel_hi.
# TODO/FIXME: The generated PCREL_LO relocations are incorrect.
# RISCVMCExpr::evaluatePCRelLo should not be evaluating the fixup when linker
# relaxation is enabled.
#addi t1, t1, %pcrel_lo(bar)
#sb t1, %pcrel_lo(bar)(a2)
addi t1, t1, %pcrel_lo(2b)
# NORELAX-RELOC-NOT: R_RISCV_PCREL_LO12_I
# NORELAX-RELOC-NOT: R_RISCV_RELAX
# RELAX-RELOC: R_RISCV_PCREL_LO12_I bar 0x4
# RELAX-RELOC: R_RISCV_RELAX - 0x0
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(.Ltmp1), kind: fixup_riscv_pcrel_lo12_i
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax
sb t1, %pcrel_lo(2b)(a2)
# NORELAX-RELOC-NOT: R_RISCV_PCREL_LO12_S
# NORELAX-RELOC-NOT: R_RISCV_RELAX
# RELAX-RELOC: R_RISCV_PCREL_LO12_S bar 0x8
# RELAX-RELOC: R_RISCV_RELAX - 0x0
# RELAX-FIXUP: fixup A - offset: 0, value: %pcrel_lo(.Ltmp1), kind: fixup_riscv_pcrel_lo12_s
# RELAX-FIXUP: fixup B - offset: 0, value: 0, kind: fixup_riscv_relax