5aa84a744b
* initial set of work for windows fastcall (x64) call convention - call conventions: rename `fastcall` to `windows_fastcall` - add initial set of filetests - ensure arguments are written after the shadow space/store (offset-wise) The shadow space available before the arguments (range 0..32) is not used as spill space yet. * address review feedback
35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
test compile
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set is_64bit
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set opt_level=best
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set is_pic
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isa x86 haswell
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; check if for one arg we use the right register
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function %one_arg(i64) windows_fastcall {
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ebb0(v0: i64):
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return
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}
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; check: function %one_arg(i64 [%rcx], i64 fp [%rbp]) -> i64 fp [%rbp] windows_fastcall {
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; nextln: ss0 = incoming_arg 16, offset -48
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; check if we still use registers for 4 arguments
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function %four_args(i64, i64, i64, i64) windows_fastcall {
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ebb0(v0: i64, v1: i64, v2: i64, v3: i64):
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return
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}
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; check: function %four_args(i64 [%rcx], i64 [%rdx], i64 [%r8], i64 [%r9], i64 fp [%rbp]) -> i64 fp [%rbp] windows_fastcall {
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; check if float arguments are passed through XMM registers
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function %four_float_args(f64, f64, f64, f64) windows_fastcall {
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ebb0(v0: f64, v1: f64, v2: f64, v3: f64):
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return
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}
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; check: function %four_float_args(f64 [%xmm0], f64 [%xmm1], f64 [%xmm2], f64 [%xmm3], i64 fp [%rbp]) -> i64 fp [%rbp] windows_fastcall {
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; check if we use stack space for > 4 arguments
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function %five_args(i64, i64, i64, i64, i64) windows_fastcall {
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ebb0(v0: i64, v1: i64, v2: i64, v3: i64, v4: i64):
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return
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}
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; check: function %five_args(i64 [%rcx], i64 [%rdx], i64 [%r8], i64 [%r9], i64 [32], i64 fp [%rbp]) -> i64 fp [%rbp] windows_fastcall {
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