llvm-project

History

Tom Stellard e9f8b24985 AMDGPU/SI: Remove assert from AMDGPUOpenCLImageTypeLowering pass Summary: Instead of asserting when the kernel metadata is different than we expect, we should just skip lowering that function. This fixes assertion failures with OpenCL argument metadata from older LLVM releases. Reviewers: arsenm Subscribers: arsenm, llvm-commits Differential Revision: http://reviews.llvm.org/D13356 llvm-svn: 249073		2015-10-01 21:16:05 +00:00
..
32-bit-local-address-space.ll	…
README	…
add-debug.ll	…
add.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
add_i64.ll	…
address-space.ll	PeepholeOptimizer: Remove redundant copies	2015-09-25 20:22:12 +00:00
and.ll	AMDGPU: Add some more tests for literal operands	2015-09-25 18:21:47 +00:00
anyext.ll	…
array-ptr-calc-i32.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
array-ptr-calc-i64.ll	AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32)	2015-07-14 18:20:33 +00:00
atomic_cmp_swap_local.ll	…
atomic_load_add.ll	…
atomic_load_sub.ll	…
basic-branch.ll	…
basic-loop.ll	…
bfe_uint.ll	…
bfi_int.ll	…
big_alu.ll	…
bitcast.ll	…
bswap.ll	…
build_vector.ll	…
call.ll	…
call_fs.ll	…
cayman-loop-bug.ll	…
cf-stack-bug.ll	…
cf_end.ll	…
cgp-addressing-modes-flat.ll	AMDGPU: Assume SMRD access for constant address space	2015-08-07 20:18:34 +00:00
cgp-addressing-modes.ll	AMDGPU/SI: Fold operands through REG_SEQUENCE instructions	2015-09-09 15:43:26 +00:00
coalescer_remat.ll	…
codegen-prepare-addrmode-sext.ll	…
combine_vloads.ll	…
commute-compares.ll	…
commute-shifts.ll	AMDGPU: really don't commute REV opcodes if the target variant doesn't exist	2015-06-26 20:29:10 +00:00
commute_modifiers.ll	…
complex-folding.ll	…
concat_vectors.ll	…
copy-illegal-type.ll	…
copy-to-reg.ll	…
ctlz_zero_undef.ll	…
ctpop.ll	…
ctpop64.ll	AMDGPU: Reduce number of copies emitted	2015-09-24 07:16:37 +00:00
cttz_zero_undef.ll	…
cvt_f32_ubyte.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
cvt_flr_i32_f32.ll	…
cvt_rpi_i32_f32.ll	…
dagcombiner-bug-illegal-vec4-int-to-fp.ll	…
debug.ll	…
default-fp-mode.ll	…
disconnected-predset-break-bug.ll	…
dot4-folding.ll	…
drop-mem-operand-move-smrd.ll	AMDGPU: Fix dropping mem operands when moving to VALU	2015-08-29 06:48:46 +00:00
ds-negative-offset-addressing-mode-loop.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
ds-sub-offset.ll	AMDGPU: Handle sub of constant for DS offset folding	2015-09-08 19:34:22 +00:00
ds_read2.ll	AMDGPU/SI: Fix read2 merging into a super register.	2015-07-14 17:57:36 +00:00
ds_read2_offset_order.ll	AMDGPU/SI: Fix read2 merging into a super register.	2015-07-14 17:57:36 +00:00
ds_read2_superreg.ll	Introduce target hook for optimizing register copies	2015-09-24 08:36:14 +00:00
ds_read2st64.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
ds_write2.ll	AMDGPU/SI: Fix read2 merging into a super register.	2015-07-14 17:57:36 +00:00
ds_write2st64.ll	AMDGPU/SI: Fix read2 merging into a super register.	2015-07-14 17:57:36 +00:00
dynamic_stackalloc.ll	AMDGPU: Produce error on dynamic_stackalloc	2015-08-26 18:37:13 +00:00
elf.ll	AMDGPU/SI: Set ELF OS/ABI to ELFOSABI_AMDGPU_HSA	2015-06-26 21:15:11 +00:00
elf.r600.ll	…
empty-function.ll	…
endcf-loop-header.ll	…
extload-private.ll	…
extload.ll	…
extract-vector-elt-i64.ll	AMDGPU: Handle i64->v2i32 loads/stores in PreprocessISelDAG	2015-09-25 17:27:08 +00:00
extract_vector_elt_i16.ll	…
fabs.f64.ll	…
fabs.ll	…
fadd.ll	…
fadd64.ll	…
fceil.ll	…
fceil64.ll	…
fcmp-cnd.ll	…
fcmp-cnde-int-args.ll	…
fcmp.ll	Fix CHECK directives that weren't checking.	2015-08-31 21:10:35 +00:00
fcmp64.ll	…
fconst64.ll	…
fcopysign.f32.ll	…
fcopysign.f64.ll	…
fdiv.f64.ll	…
fdiv.ll	…
fetch-limits.r600.ll	…
fetch-limits.r700+.ll	…
ffloor.f64.ll	…
ffloor.ll	…
flat-address-space.ll	Fix CHECK directives that weren't checking.	2015-08-31 21:10:35 +00:00
floor.ll	…
fma-combine.ll	[DAGCombiner] Improve FMA support for interpolation patterns	2015-09-21 20:32:48 +00:00
fma.f64.ll	…
fma.ll	…
fmad.ll	…
fmax.ll	…
fmax3.f64.ll	…
fmax3.ll	…
fmax_legacy.f64.ll	…
fmax_legacy.ll	…
fmaxnum.f64.ll	…
fmaxnum.ll	…
fmin.ll	…
fmin3.ll	…
fmin_legacy.f64.ll	…
fmin_legacy.ll	…
fminnum.f64.ll	…
fminnum.ll	…
fmul-2-combine-multi-use.ll	Only do fmul (fadd x, x), c combine if the fadd only has one use	2015-07-17 01:14:35 +00:00
fmul.ll	…
fmul64.ll	…
fmuladd.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
fnearbyint.ll	…
fneg-fabs.f64.ll	…
fneg-fabs.ll	…
fneg.f64.ll	…
fneg.ll	…
fp-classify.ll	…
fp16_to_fp.ll	…
fp32_to_fp16.ll	…
fp_to_sint.f64.ll	…
fp_to_sint.ll	…
fp_to_uint.f64.ll	…
fp_to_uint.ll	…
fpext.ll	…
fptrunc.ll	…
frem.ll	…
fsqrt.ll	…
fsub.ll	…
fsub64.ll	…
ftrunc.f64.ll	…
ftrunc.ll	…
gep-address-space.ll	…
global-directive.ll	…
global-extload-i1.ll	…
global-extload-i8.ll	…
global-extload-i16.ll	…
global-extload-i32.ll	…
global-zero-initializer.ll	…
global_atomics.ll	AMDGPU: Fix printing trailing whitespace for mubuf atomics	2015-09-24 07:51:17 +00:00
gv-const-addrspace-fail.ll	…
gv-const-addrspace.ll	AMDGPU: don't match vgpr loads for constant loads	2015-07-27 18:16:08 +00:00
half.ll	Introduce target hook for optimizing register copies	2015-09-24 08:36:14 +00:00
hsa.ll	AMDGPU/SI: Use .hsatext section instead of .text for HSA	2015-09-25 21:41:28 +00:00
i1-copy-implicit-def.ll	…
i1-copy-phi.ll	…
i8-to-double-to-float.ll	…
icmp-select-sete-reverse-args.ll	…
icmp64.ll	…
image-attributes.ll	AMDGPU: Add pass to lower OpenCL image and sampler arguments.	2015-08-07 23:19:30 +00:00
image-resource-id.ll	AMDGPU: Add pass to lower OpenCL image and sampler arguments.	2015-08-07 23:19:30 +00:00
imm.ll	…
indirect-addressing-si.ll	…
indirect-private-64.ll	…
infinite-loop-evergreen.ll	…
infinite-loop.ll	…
inline-asm.ll	…
inline-calls.ll	…
input-mods.ll	…
insert_subreg.ll	…
insert_vector_elt.ll	…
invariant-load-no-alias-store.ll	DAGCombiner: Assume invariant load cannot alias a store	2015-07-10 22:17:40 +00:00
jump-address.ll	…
kcache-fold.ll	…
kernel-args.ll	…
large-alloca.ll	…
large-constant-initializer.ll	…
lds-initializer.ll	…
lds-oqap-crash.ll	…
lds-output-queue.ll	…
lds-size.ll	…
lds-zero-initializer.ll	…
legalizedag-bug-expand-setcc.ll	…
lit.local.cfg	…
literals.ll	…
llvm.AMDGPU.abs.ll	…
llvm.AMDGPU.barrier.global.ll	…
llvm.AMDGPU.barrier.local.ll	…
llvm.AMDGPU.bfe.i32.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
llvm.AMDGPU.bfe.u32.ll	…
llvm.AMDGPU.bfi.ll	…
llvm.AMDGPU.bfm.ll	…
llvm.AMDGPU.brev.ll	…
llvm.AMDGPU.clamp.ll	…
llvm.AMDGPU.class.ll	AMDGPU: Improve accuracy of instruction rates for VOPC	2015-09-25 16:58:25 +00:00
llvm.AMDGPU.cube.ll	…
llvm.AMDGPU.cvt_f32_ubyte.ll	…
llvm.AMDGPU.div_fixup.ll	…
llvm.AMDGPU.div_fmas.ll	AMDGPU/SI: Fix extra space when printing v_div_fmas_*	2015-06-28 18:16:14 +00:00
llvm.AMDGPU.div_scale.ll	…
llvm.AMDGPU.flbit.i32.ll	…
llvm.AMDGPU.fract.f64.ll	AMDGPU/SI: Fix the V_FRACT_F64 SI bug workaround	2015-07-27 11:37:42 +00:00
llvm.AMDGPU.fract.ll	…
llvm.AMDGPU.imad24.ll	…
llvm.AMDGPU.imax.ll	…
llvm.AMDGPU.imin.ll	…
llvm.AMDGPU.imul24.ll	…
llvm.AMDGPU.kill.ll	…
llvm.AMDGPU.ldexp.ll	…
llvm.AMDGPU.legacy.rsq.ll	…
llvm.AMDGPU.mul.ll	…
llvm.AMDGPU.rcp.f64.ll	…
llvm.AMDGPU.rcp.ll	…
llvm.AMDGPU.rsq.clamped.f64.ll	…
llvm.AMDGPU.rsq.clamped.ll	…
llvm.AMDGPU.rsq.ll	…
llvm.AMDGPU.tex.ll	…
llvm.AMDGPU.trig_preop.ll	…
llvm.AMDGPU.trunc.ll	…
llvm.AMDGPU.umad24.ll	…
llvm.AMDGPU.umax.ll	…
llvm.AMDGPU.umin.ll	…
llvm.AMDGPU.umul24.ll	…
llvm.SI.fs.interp.ll	…
llvm.SI.gather4.ll	…
llvm.SI.getlod.ll	…
llvm.SI.image.ll	…
llvm.SI.image.sample.ll	…
llvm.SI.image.sample.o.ll	…
llvm.SI.imageload.ll	…
llvm.SI.load.dword.ll	…
llvm.SI.resinfo.ll	…
llvm.SI.sample-masked.ll	…
llvm.SI.sample.ll	…
llvm.SI.sampled.ll	…
llvm.SI.sendmsg-m0.ll	…
llvm.SI.sendmsg.ll	…
llvm.SI.tbuffer.store.ll	…
llvm.SI.tid.ll	…
llvm.amdgcn.buffer.wbinvl1.ll	AMDGPU: Add cache invalidation instructions.	2015-09-24 19:52:21 +00:00
llvm.amdgcn.buffer.wbinvl1.sc.ll	AMDGPU: Add cache invalidation instructions.	2015-09-24 19:52:21 +00:00
llvm.amdgcn.buffer.wbinvl1.vol.ll	AMDGPU: Add cache invalidation instructions.	2015-09-24 19:52:21 +00:00
llvm.amdgcn.s.dcache.inv.ll	AMDGPU: Add s_dcache_* instructions	2015-09-24 19:52:27 +00:00
llvm.amdgcn.s.dcache.inv.vol.ll	AMDGPU: Add s_dcache_* instructions	2015-09-24 19:52:27 +00:00
llvm.amdgcn.s.dcache.wb.ll	AMDGPU: Add s_dcache_* instructions	2015-09-24 19:52:27 +00:00
llvm.amdgcn.s.dcache.wb.vol.ll	AMDGPU: Add s_dcache_* instructions	2015-09-24 19:52:27 +00:00
llvm.amdgpu.dp4.ll	…
llvm.amdgpu.kilp.ll	…
llvm.amdgpu.lrp.ll	[DAGCombiner] Improve FMA support for interpolation patterns	2015-09-21 20:32:48 +00:00
llvm.cos.ll	…
llvm.dbg.value.ll	DI: Require subprogram definitions to be distinct	2015-08-28 20:26:49 +00:00
llvm.exp2.ll	…
llvm.log2.ll	…
llvm.memcpy.ll	…
llvm.pow.ll	…
llvm.rint.f64.ll	…
llvm.rint.ll	…
llvm.round.f64.ll	Introduce target hook for optimizing register copies	2015-09-24 08:36:14 +00:00
llvm.round.ll	AMDGPU/SI: Add support for shrinking v_cndmask_b32_e32 instructions	2015-07-14 14:15:03 +00:00
llvm.sin.ll	…
llvm.sqrt.ll	…
load-i1.ll	…
load-input-fold.ll	…
load.ll	…
load.vec.ll	…
load64.ll	…
local-64.ll	…
local-atomics.ll	…
local-atomics64.ll	…
local-memory-two-objects.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
local-memory.ll	…
loop-address.ll	…
loop-idiom.ll	…
lshl.ll	…
lshr.ll	…
m0-spill.ll	…
mad-combine.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
mad-sub.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
mad_int24.ll	…
mad_uint24.ll	…
madak.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
madmk.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
max-literals.ll	…
max.ll	…
max3.ll	…
merge-stores.ll	DAGCombiner: Replace store of FP constant after attemping store merges	2015-09-21 15:59:46 +00:00
min.ll	…
min3.ll	…
missing-store.ll	…
move-addr64-rsrc-dead-subreg-writes.ll	Introduce target hook for optimizing register copies	2015-09-24 08:36:14 +00:00
mubuf.ll	…
mul.ll	…
mul_int24.ll	…
mul_uint24.ll	AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32)	2015-07-14 18:20:33 +00:00
mulhu.ll	…
no-initializer-constant-addrspace.ll	…
no-shrink-extloads.ll	…
opencl-image-metadata.ll	AMDGPU/SI: Remove assert from AMDGPUOpenCLImageTypeLowering pass	2015-10-01 21:16:05 +00:00
operand-folding.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
operand-spacing.ll	…
or.ll	…
packetizer.ll	…
parallelandifcollapse.ll	…
parallelorifcollapse.ll	…
partially-dead-super-register-immediate.ll	LiveIntervalAnalysis: Avoid multiple connected liveness components	2015-09-22 22:37:44 +00:00
predicate-dp4.ll	…
predicates.ll	…
private-memory-atomics.ll	…
private-memory-broken.ll	…
private-memory.ll	AMDPGU/SI: Negative offsets aren't allowed in MUBUF's vaddr operand	2015-07-16 19:40:09 +00:00
promote-alloca-bitcast-function.ll	AMDGPU: Fix crash if called function is a bitcast	2015-07-28 18:29:14 +00:00
promote-alloca-stored-pointer-value.ll	AMDGPU: Don't try to use LDS/vector for private if pointer value stored	2015-07-28 18:47:00 +00:00
pv-packing.ll	…
pv.ll	…
r600-encoding.ll	…
r600-export-fix.ll	…
r600-infinite-loop-bug-while-reorganizing-vector.ll	…
r600cfg.ll	…
reciprocal.ll	…
register-count-comments.ll	AMDGPU/SI: Fix printing useless info with amdhsa	2015-08-15 00:12:39 +00:00
reorder-stores.ll	…
rotl.i64.ll	…
rotl.ll	…
rotr.i64.ll	…
rotr.ll	…
rsq.ll	…
rv7x0_count3.ll	…
s_movk_i32.ll	AMDGPU: Reduce number of copies emitted	2015-09-24 07:16:37 +00:00
saddo.ll	…
salu-to-valu.ll	AMDGPU: Fix splitting x16 SMRD loads	2015-09-28 20:54:52 +00:00
sampler-resource-id.ll	AMDGPU: Add pass to lower OpenCL image and sampler arguments.	2015-08-07 23:19:30 +00:00
scalar_to_vector.ll	…
schedule-fs-loop-nested-if.ll	…
schedule-fs-loop-nested.ll	…
schedule-fs-loop.ll	…
schedule-global-loads.ll	…
schedule-if-2.ll	…
schedule-if.ll	…
schedule-kernel-arg-loads.ll	…
schedule-vs-if-nested-loop-failure.ll	…
schedule-vs-if-nested-loop.ll	…
scratch-buffer.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
sdiv.ll	…
sdivrem24.ll	…
sdivrem64.ll	…
select-i1.ll	…
select-vectors.ll	AMDGPU/SI: Add support for shrinking v_cndmask_b32_e32 instructions	2015-07-14 14:15:03 +00:00
select.ll	…
select64.ll	AMDGPU/SI: Fold operands through REG_SEQUENCE instructions	2015-09-09 15:43:26 +00:00
selectcc-cnd.ll	…
selectcc-cnde-int.ll	…
selectcc-icmp-select-float.ll	…
selectcc-opt.ll	…
selectcc.ll	…
set-dx10.ll	…
setcc-equivalent.ll	…
setcc-opt.ll	AMDGPU/SI: Better handle s_wait insertion	2015-08-21 22:47:27 +00:00
setcc.ll	…
setcc64.ll	…
seto.ll	…
setuo.ll	…
sext-eliminate.ll	…
sext-in-reg.ll	AMDGPU: Fix not moving users of s_bfe_i64 to VALU	2015-08-26 20:47:58 +00:00
sgpr-control-flow.ll	…
sgpr-copy-duplicate-operand.ll	…
sgpr-copy.ll	…
shared-op-cycle.ll	…
shl.ll	AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32)	2015-07-14 18:20:33 +00:00
shl_add_constant.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
shl_add_ptr.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
si-annotate-cf-assertion.ll	…
si-annotate-cf.ll	…
si-instr-info-correct-implicit-operands.ll	AMDGPU/SI: Add implicit register operands in the correct order.	2015-07-31 23:30:09 +00:00
si-literal-folding.ll	AMDGPU/SI: Add test for folding constants into operands	2015-08-27 17:41:27 +00:00
si-lod-bias.ll	…
si-sgpr-spill.ll	…
si-spill-cf.ll	…
si-triv-disjoint-mem-access.ll	AMDGPU: Fix sched model for VOP2b instructions	2015-09-26 02:25:45 +00:00
si-vector-hang.ll	…
sign_extend.ll	…
simplify-demanded-bits-build-pair.ll	…
sint_to_fp.f64.ll	AMDGPU: Improve accuracy of instruction rates for some FP instructions	2015-08-22 00:50:41 +00:00
sint_to_fp.ll	…
smrd.ll	AMDGPU/SI: Add support for 32-bit immediate SMRD offsets on CI	2015-08-06 19:28:38 +00:00
split-scalar-i64-add.ll	…
sra.ll	…
srem.ll	…
srl.ll	AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32)	2015-07-14 18:20:33 +00:00
ssubo.ll	…
store-barrier.ll	…
store-v3i32.ll	…
store-v3i64.ll	…
store-vector-ptrs.ll	…
store.ll	…
store.r600.ll	…
store_typed.ll	AMDGPU: Add MEM_RAT STORE_TYPED.	2015-10-01 17:51:34 +00:00
structurize.ll	…
structurize1.ll	…
sub.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
subreg-coalescer-crash.ll	…
subreg-coalescer-undef-use.ll	Test for specific output in lit test	2015-07-01 22:34:59 +00:00
subreg-eliminate-dead.ll	…
swizzle-export.ll	…
tex-clause-antidep.ll	…
texture-input-merge.ll	…
trunc-cmp-constant.ll	…
trunc-store-f64-to-f16.ll	…
trunc-store-i1.ll	…
trunc-store.ll	AMDGPU: Fix v16i32 to v16i8 truncstore	2015-07-31 04:12:04 +00:00
trunc-vector-store-assertion-failure.ll	…
trunc.ll	…
tti-unroll-prefs.ll	…
uaddo.ll	…
udiv.ll	…
udivrem.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
udivrem24.ll	…
udivrem64.ll	…
uint_to_fp.f64.ll	AMDGPU: Improve accuracy of instruction rates for some FP instructions	2015-08-22 00:50:41 +00:00
uint_to_fp.ll	…
unaligned-load-store.ll	…
unhandled-loop-condition-assertion.ll	…
unroll.ll	…
unsupported-cc.ll	…
urecip.ll	…
urem.ll	…
use-sgpr-multiple-times.ll	PeepholeOptimizer: Remove redundant copies	2015-09-25 20:22:12 +00:00
usubo.ll	…
v1i64-kernel-arg.ll	…
v_cndmask.ll	…
v_mac.ll	AMDGPU/SI: Select mad patterns to v_mac_f32	2015-07-13 15:47:57 +00:00
valu-i1.ll	AMDGPU: Improve accuracy of instruction rates for VOPC	2015-09-25 16:58:25 +00:00
vector-alloca.ll	…
vertex-fetch-encoding.ll	…
vop-shrink.ll	AMDGPU: Add sdst operand to VOP2b instructions	2015-08-29 07:16:50 +00:00
vselect.ll	AMDGPU/SI: Add support for shrinking v_cndmask_b32_e32 instructions	2015-07-14 14:15:03 +00:00
vselect64.ll	…
vtx-fetch-branch.ll	…
vtx-schedule.ll	…
wait.ll	AMDGPU/SI: Better handle s_wait insertion	2015-08-21 22:47:27 +00:00
work-item-intrinsics.ll	…
wrong-transalu-pos-fix.ll	…
xor.ll	AMDGPU/SI: Add support for shrinking v_cndmask_b32_e32 instructions	2015-07-14 14:15:03 +00:00
zero_extend.ll	…

README

+==============================================================================+
| How to organize the lit tests                                                |
+==============================================================================+

- If you write a test for matching a single DAG opcode or intrinsic, it should
  go in a file called {opcode_name,intrinsic_name}.ll (e.g. fadd.ll)

- If you write a test that matches several DAG opcodes and checks for a single
  ISA instruction, then that test should go in a file called {ISA_name}.ll (e.g.
  bfi_int.ll

- For all other tests, use your best judgement for organizing tests and naming
  the files.

+==============================================================================+
| Naming conventions                                                           |
+==============================================================================+

- Use dash '-' and not underscore '_' to separate words in file names, unless
  the file is named after a DAG opcode or ISA instruction that has an
  underscore '_' in its name.