c5b15c2396
Add a calling-convention setting to the `Flags` used as part of the `TargetIsa`. This allows Cretonne code that generates calls to use the correct convention, such as when emitting libcalls during legalization or when the wasm frontend is decoding functions. This setting can be overridden per-function. This also adds "fast", "cold", and "fastcall" conventions, with "fast" as the new default. Note that "fast" and "cold" are not intended to be ABI-compatible across Cretonne versions. This will also ensure Windows users will get an `unimplemented!` rather than silent calling-convention mismatches, which reflects the fact that Windows calling conventions are not yet implemented. This also renames SpiderWASM, which isn't camel-case, to Baldrdash, which is, and which is also a more relevant name.
113 lines
2.2 KiB
Plaintext
113 lines
2.2 KiB
Plaintext
; Parsing branches and jumps.
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test cat
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; Jumps with no arguments. The '()' empty argument list is optional.
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function %minimal() {
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ebb0:
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jump ebb1
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ebb1:
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jump ebb0()
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}
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; sameln: function %minimal() fast {
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; nextln: ebb0:
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; nextln: jump ebb1
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; nextln:
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; nextln: ebb1:
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; nextln: jump ebb0
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; nextln: }
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; Jumps with 1 arg.
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function %onearg(i32) {
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ebb0(v90: i32):
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jump ebb1(v90)
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ebb1(v91: i32):
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jump ebb0(v91)
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}
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; sameln: function %onearg(i32) fast {
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; nextln: ebb0(v90: i32):
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; nextln: jump ebb1(v90)
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; nextln:
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; nextln: ebb1(v91: i32):
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; nextln: jump ebb0(v91)
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; nextln: }
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; Jumps with 2 args.
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function %twoargs(i32, f32) {
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ebb0(v90: i32, v91: f32):
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jump ebb1(v90, v91)
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ebb1(v92: i32, v93: f32):
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jump ebb0(v92, v93)
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}
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; sameln: function %twoargs(i32, f32) fast {
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; nextln: ebb0(v90: i32, v91: f32):
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; nextln: jump ebb1(v90, v91)
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; nextln:
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; nextln: ebb1(v92: i32, v93: f32):
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; nextln: jump ebb0(v92, v93)
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; nextln: }
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; Branches with no arguments. The '()' empty argument list is optional.
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function %minimal(i32) {
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ebb0(v90: i32):
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brz v90, ebb1
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ebb1:
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brnz v90, ebb1()
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}
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; sameln: function %minimal(i32) fast {
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; nextln: ebb0(v90: i32):
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; nextln: brz v90, ebb1
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; nextln:
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; nextln: ebb1:
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; nextln: brnz.i32 v90, ebb1
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; nextln: }
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function %twoargs(i32, f32) {
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ebb0(v90: i32, v91: f32):
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brz v90, ebb1(v90, v91)
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ebb1(v92: i32, v93: f32):
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brnz v90, ebb0(v92, v93)
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}
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; sameln: function %twoargs(i32, f32) fast {
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; nextln: ebb0(v90: i32, v91: f32):
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; nextln: brz v90, ebb1(v90, v91)
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; nextln:
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; nextln: ebb1(v92: i32, v93: f32):
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; nextln: brnz.i32 v90, ebb0(v92, v93)
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; nextln: }
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function %jumptable(i32) {
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jt200 = jump_table 0, 0
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jt2 = jump_table 0, 0, ebb10, ebb40, ebb20, ebb30
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ebb10(v3: i32):
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br_table v3, jt2
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trap user1
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ebb20:
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trap user2
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ebb30:
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trap user3
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ebb40:
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trap user4
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}
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; sameln: function %jumptable(i32) fast {
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; check: jt2 = jump_table 0, 0, ebb10, ebb40, ebb20, ebb30
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; check: jt200 = jump_table 0
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; check: ebb10(v3: i32):
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; nextln: br_table v3, jt2
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; nextln: trap user1
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; nextln:
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; nextln: ebb20:
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; nextln: trap user2
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; nextln:
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; nextln: ebb30:
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; nextln: trap user3
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; nextln:
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; nextln: ebb40:
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; nextln: trap user4
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; nextln: }
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