e44a5a4391
These special-purpose arguments and return values are only relevant for the function being compiled, so add a `current` flag to legalize_signature(). - Add the necessary argument values to the entry block to represent the special-purpose arguments. - Propagate the link and sret arguments to return instructions if the legalized signature asks for it.
121 lines
3.3 KiB
Plaintext
121 lines
3.3 KiB
Plaintext
; Test legalizer's handling of ABI boundaries.
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test legalizer
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isa riscv
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; regex: V=v\d+
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function int_split_args(i64) -> i64 {
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ebb0(v0: i64):
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; check: $ebb0($(v0l=$V): i32, $(v0h=$V): i32, $(link=$V): i32):
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; check: $v0 = iconcat $v0l, $v0h
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v1 = iadd_imm v0, 1
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; check: $(v1l=$V), $(v1h=$V) = isplit $v1
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; check: return $v1l, $v1h, $link
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return v1
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}
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function split_call_arg(i32) {
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fn1 = function foo(i64)
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fn2 = function foo(i32, i64)
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ebb0(v0: i32):
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v1 = uextend.i64 v0
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call fn1(v1)
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; check: $(v1l=$V), $(v1h=$V) = isplit $v1
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; check: call $fn1($v1l, $v1h)
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call fn2(v0, v1)
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; check: call $fn2($v0, $V, $V)
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return
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}
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function split_ret_val() {
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fn1 = function foo() -> i64
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ebb0:
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v1 = call fn1()
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; check: $ebb0($(link=$V): i32):
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; nextln: $(v1l=$V), $(v1h=$V) = call $fn1()
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; check: $v1 = iconcat $v1l, $v1h
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jump ebb1(v1)
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; check: jump $ebb1($v1)
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ebb1(v10: i64):
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jump ebb1(v10)
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}
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; First return value is fine, second one is expanded.
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function split_ret_val2() {
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fn1 = function foo() -> i32, i64
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ebb0:
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v1, v2 = call fn1()
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; check: $ebb0($(link=$V): i32):
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; nextln: $v1, $(v2l=$V), $(v2h=$V) = call $fn1()
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; check: $v2 = iconcat $v2l, $v2h
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jump ebb1(v1, v2)
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; check: jump $ebb1($v1, $v2)
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ebb1(v9: i32, v10: i64):
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jump ebb1(v9, v10)
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}
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function int_ext(i8, i8 sext, i8 uext) -> i8 uext {
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ebb0(v1: i8, v2: i8, v3: i8):
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; check: $ebb0($v1: i8, $(v2x=$V): i32, $(v3x=$V): i32, $(link=$V): i32):
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; check: $v2 = ireduce.i8 $v2x
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; check: $v3 = ireduce.i8 $v3x
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; check: $(v1x=$V) = uextend.i32 $v1
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; check: return $v1x, $link
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return v1
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}
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; Function produces single return value, still need to copy.
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function ext_ret_val() {
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fn1 = function foo() -> i8 sext
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ebb0:
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v1 = call fn1()
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; check: $ebb0($V: i32):
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; nextln: $(rv=$V) = call $fn1()
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; check: $v1 = ireduce.i8 $rv
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jump ebb1(v1)
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; check: jump $ebb1($v1)
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ebb1(v10: i8):
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jump ebb1(v10)
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}
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function vector_split_args(i64x4) -> i64x4 {
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ebb0(v0: i64x4):
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; check: $ebb0($(v0al=$V): i32, $(v0ah=$V): i32, $(v0bl=$V): i32, $(v0bh=$V): i32, $(v0cl=$V): i32, $(v0ch=$V): i32, $(v0dl=$V): i32, $(v0dh=$V): i32, $(link=$V): i32):
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; check: $(v0a=$V) = iconcat $v0al, $v0ah
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; check: $(v0b=$V) = iconcat $v0bl, $v0bh
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; check: $(v0ab=$V) = vconcat $v0a, $v0b
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; check: $(v0c=$V) = iconcat $v0cl, $v0ch
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; check: $(v0d=$V) = iconcat $v0dl, $v0dh
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; check: $(v0cd=$V) = vconcat $v0c, $v0d
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; check: $v0 = vconcat $v0ab, $v0cd
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v1 = bxor v0, v0
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; check: $(v1ab=$V), $(v1cd=$V) = vsplit $v1
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; check: $(v1a=$V), $(v1b=$V) = vsplit $v1ab
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; check: $(v1al=$V), $(v1ah=$V) = isplit $v1a
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; check: $(v1bl=$V), $(v1bh=$V) = isplit $v1b
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; check: $(v1c=$V), $(v1d=$V) = vsplit $v1cd
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; check: $(v1cl=$V), $(v1ch=$V) = isplit $v1c
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; check: $(v1dl=$V), $(v1dh=$V) = isplit $v1d
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; check: return $v1al, $v1ah, $v1bl, $v1bh, $v1cl, $v1ch, $v1dl, $v1dh, $link
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return v1
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}
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function indirect(i32) {
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sig1 = signature()
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ebb0(v0: i32):
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call_indirect sig1, v0()
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return
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}
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; The first argument to call_indirect doesn't get altered.
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function indirect_arg(i32, f32x2) {
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sig1 = signature(f32x2)
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ebb0(v0: i32, v1: f32x2):
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call_indirect sig1, v0(v1)
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; check: call_indirect $sig1, $v0($V, $V)
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return
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}
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