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