derek.holloway
7502bf64a4
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171 lines
4.7 KiB
ArmAsm
171 lines
4.7 KiB
ArmAsm
# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+xqcilb %t/pass.s -o - \
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# RUN: | llvm-objdump -dr -M no-aliases - --mattr=+xqcilb | FileCheck %s
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# RUN: not llvm-mc -filetype=obj -triple riscv32 -mattr=+xqcilb %t/fail.s \
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# RUN: 2>&1 | FileCheck %t/fail.s --check-prefix=ERROR
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## This testcase shows how `c.j`, `c.jal` and `jal` can be relaxed to `qc.e.j` and `qc.e.jal`
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## with Xqcilb, when the branches are out of range, but also that these can be compressed
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## when referencing close labels.
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## The only problem we have here is when `jal` references an out-of-range label, and `rd` is
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## not `x0` or `x1` - for which we have no equivalent sequence, so we just fail to relax, and
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## emit a fixup-value-out-of-range error.
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#--- pass.s
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EXT_JUMP_NEGATIVE:
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c.nop
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.space 0x100000
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FAR_JUMP_NEGATIVE:
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c.nop
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.space 0x1000
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NEAR_NEGATIVE:
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c.nop
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start:
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c.j NEAR
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR>
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c.j NEAR_NEGATIVE
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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c.j FAR_JUMP
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP>
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c.j FAR_JUMP_NEGATIVE
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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c.j EXT_JUMP
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP>
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c.j EXT_JUMP_NEGATIVE
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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c.j undef
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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c.jal NEAR
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR>
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c.jal NEAR_NEGATIVE
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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c.jal FAR_JUMP
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP>
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c.jal FAR_JUMP_NEGATIVE
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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c.jal EXT_JUMP
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP>
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c.jal EXT_JUMP_NEGATIVE
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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c.jal undef
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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jal zero, NEAR
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR>
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jal zero, NEAR_NEGATIVE
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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jal zero, FAR_JUMP
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP>
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jal zero, FAR_JUMP_NEGATIVE
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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jal zero, EXT_JUMP
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP>
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jal zero, EXT_JUMP_NEGATIVE
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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jal zero, undef
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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jal ra, NEAR
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR>
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jal ra, NEAR_NEGATIVE
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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jal ra, FAR_JUMP
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP>
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jal ra, FAR_JUMP_NEGATIVE
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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jal ra, EXT_JUMP
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP>
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jal ra, EXT_JUMP_NEGATIVE
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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jal ra, undef
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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qc.e.j NEAR
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR>
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qc.e.j NEAR_NEGATIVE
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# CHECK: c.j {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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qc.e.j FAR_JUMP
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP>
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qc.e.j FAR_JUMP_NEGATIVE
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# CHECK: jal zero, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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qc.e.j EXT_JUMP
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP>
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qc.e.j EXT_JUMP_NEGATIVE
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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qc.e.j undef
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# CHECK: qc.e.j {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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qc.e.jal NEAR
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR>
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qc.e.jal NEAR_NEGATIVE
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# CHECK: c.jal {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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qc.e.jal FAR_JUMP
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP>
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qc.e.jal FAR_JUMP_NEGATIVE
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# CHECK: jal ra, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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qc.e.jal EXT_JUMP
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP>
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qc.e.jal EXT_JUMP_NEGATIVE
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <EXT_JUMP_NEGATIVE>
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qc.e.jal undef
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# CHECK: qc.e.jal {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_QC_E_CALL_PLT undef
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jal t1, NEAR
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# CHECK: jal t1, {{0x[0-9a-f]+}} <NEAR>
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jal t1, NEAR_NEGATIVE
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# CHECK: jal t1, {{0x[0-9a-f]+}} <NEAR_NEGATIVE>
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jal t1, FAR_JUMP
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# CHECK: jal t1, {{0x[0-9a-f]+}} <FAR_JUMP>
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jal t1, FAR_JUMP_NEGATIVE
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# CHECK: jal t1, {{0x[0-9a-f]+}} <FAR_JUMP_NEGATIVE>
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## The two cases with EXT_JUMP and EXT_JUMP_NEGATIVE are
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## in fail.s, below.
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jal t1, undef
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# CHECK: jal t1, {{0x[0-9a-f]+}} <start+{{0x[0-9a-f]+}}>
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# CHECK: R_RISCV_JAL undef
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NEAR:
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c.nop
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.space 0x1000
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FAR_JUMP:
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c.nop
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.space 0x100000
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EXT_JUMP:
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c.nop
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#--- fail.s
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EXT_JUMP_NEGATIVE:
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c.nop
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.space 0x100000
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.space 0x1000
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jal t1, EXT_JUMP
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# ERROR: [[@LINE-1]]:11: error: fixup value out of range
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jal t1, EXT_JUMP_NEGATIVE
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# ERROR: [[@LINE-1]]:11: error: fixup value out of range
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.space 0x1000
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.space 0x100000
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EXT_JUMP:
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c.nop
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