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5b328c4a2f
go/test/abi
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Cherry Zhang 5b328c4a2f cmd/compile: use desired register only if it satisfies register mask 
In the register allocator, if possible, we allocate a value to its
desired register (the ideal register for its next use). In some
cases the desired register does not satisfies the value's output
register mask. We should not use the register in this case.

In the following example, v33 is going to be returned as a
function result, so it is allocated to its desired register AX.
However, its Op cannot use AX as output, causing miscompilation.

v33 = CMOVQEQF <int> v24 v28 v29 : AX (~R0[int])
v35 = MakeResult <int,int,mem> v33 v26 v18
Ret v35

Change-Id: Id0f4f27c4b233ee297e83077e3c8494fe193e664
Reviewed-on: https://go-review.googlesource.com/c/go/+/314630
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2021-04-28 16:13:40 +00:00
..
bad_internal_offsets.go cmd/compile: fix broken type+offset calc for register args 2021-03-09 18:44:23 +00:00
bad_select_crash.go test/abi: reenable test on windows 2021-04-16 13:38:02 +00:00
convF_criteria.go cmd/compile: fix buglet in walk convert phase relating to convF32/64 2021-04-08 19:58:50 +00:00
convF_criteria.out cmd/compile: fix buglet in walk convert phase relating to convF32/64 2021-04-08 19:58:50 +00:00
convT64_criteria.go cmd/compile: fix buglet in walk convert phase relating to convT64 2021-04-08 17:44:21 +00:00
convT64_criteria.out cmd/compile: fix buglet in walk convert phase relating to convT64 2021-04-08 17:44:21 +00:00
defer_aggregate.go cmd/compile: deduplicate OpArg's across types 2021-03-31 20:21:57 +00:00
defer_recover_results.go cmd/compile: load results into registers on open defer return path 2021-04-06 20:22:15 +00:00
double_nested_addressed_struct.go cmd/compile: return (and receive) medium-large results 2021-03-04 23:09:24 +00:00
double_nested_struct.go cmd/compile: fix OpArg decomposer for registers in expandCalls 2021-03-09 18:43:58 +00:00
f_ret_z_not.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
f_ret_z_not.out cmd/compile: fixed which-result confusion in presence of 0-width types 2021-02-27 18:38:31 +00:00
fibish2.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
fibish2.out cmd/compile: test register ABI for method, interface, closure calls 2021-03-12 21:18:15 +00:00
fibish_closure.go cmd/compile: test register ABI for method, interface, closure calls 2021-03-12 21:18:15 +00:00
fibish_closure.out cmd/compile: test register ABI for method, interface, closure calls 2021-03-12 21:18:15 +00:00
fibish.go cmd/compile: implement simple register results 2021-03-04 19:45:11 +00:00
fibish.out cmd/compile: implement simple register results 2021-03-04 19:45:11 +00:00
fuzz_trailing_zero_field.go cmd/compile: fix register/offset calculation for trailing empty field case. 2021-04-01 15:50:43 +00:00
idata.go cmd/compile: add "surprised by IData of Arg" case for register args 2021-04-05 20:11:08 +00:00
idata.out cmd/compile: add "surprised by IData of Arg" case for register args 2021-04-05 20:11:08 +00:00
leaf2.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
leaf.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
many_int_input.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
many_int_input.out cmd/compile: register abi, morestack work and mole whacking 2021-03-04 16:19:12 +00:00
many_intstar_input.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
many_intstar_input.out cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
map.go cmd/compile: preserve pointerness when creating map key temp 2021-04-20 14:30:03 +00:00
methods.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
methods.out cmd/compile: test register ABI for method, interface, closure calls 2021-03-12 21:18:15 +00:00
more_intstar_input.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
more_intstar_input.out cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
named_results.go cmd/compile: implement too-big-to-SSA struct passing in registers 2021-03-04 20:18:16 +00:00
named_results.out cmd/compile: implement too-big-to-SSA struct passing in registers 2021-03-04 20:18:16 +00:00
named_return_stuff.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
named_return_stuff.out cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
open_defer_1.go cmd/compile: fix open defer of method call 2021-03-16 19:23:36 +00:00
part_live_2.go cmd/compile: pre-spill pointers in aggregate-typed register args 2021-04-07 03:42:11 +00:00
part_live.go cmd/compile: pre-spill pointers in aggregate-typed register args 2021-04-07 03:42:11 +00:00
result_live.go test: add test for CL 310589 2021-04-19 14:51:24 +00:00
result_regalloc.go cmd/compile: use desired register only if it satisfies register mask 2021-04-28 16:13:40 +00:00
return_stuff.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
return_stuff.out cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
s_sif_sif.go cmd/compile: fix failure to communicate between ABIinfo producer&consumer 2021-03-09 18:45:05 +00:00
spills3.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
spills4.go cmd/compile: (fixed) spill output parameters passed in registers as autos 2021-03-16 19:22:44 +00:00
store_reg_args.go cmd/compile: avoid generating duplicated in-register Arg 2021-03-30 22:10:19 +00:00
struct_3_string_input.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
struct_3_string_input.out cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
struct_lower_1.go cmd/compile: fix OpArg decomposer for registers in expandCalls 2021-03-09 18:43:58 +00:00
struct_lower_1.out cmd/compile: fix OpArg decomposer for registers in expandCalls 2021-03-09 18:43:58 +00:00
too_big_to_ssa.go cmd/compile: fix OpArg decomposer for registers in expandCalls 2021-03-09 18:43:58 +00:00
too_big_to_ssa.out cmd/compile: return (and receive) medium-large results 2021-03-04 23:09:24 +00:00
uglyfib.go cmd/compile: add register abi tests 2021-03-04 23:07:50 +00:00
uglyfib.out cmd/compile: fix pointer maps for morestack 2021-03-04 16:21:10 +00:00
wrapdefer_largetmp.go cmd/compile: fix bug in defer wrapping 2021-04-23 01:16:19 +00:00
wrapdefer_largetmp.out cmd/compile: fix bug in defer wrapping 2021-04-23 01:16:19 +00:00
zombie_struct_select.go cmd/compile: mark unused values as invalid to prevent problems in expandCalls 2021-04-02 17:58:59 +00:00