f054d32f50
- Add a ir::jumptable module with a JumpTableData struct representing the vector of destinations. - Add an entity map of jump tables to the Function. - Parse and write jump tables in the function preamble. - Rewrite EBB references in jumptables after parsing.
60 lines
913 B
Plaintext
60 lines
913 B
Plaintext
; Parsing branches and jumps.
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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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; Jumps with 1 arg.
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function onearg(i32) {
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ebb0(vx0: i32):
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jump ebb1(vx0)
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ebb1(vx1: i32):
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jump ebb0(vx1)
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}
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; Jumps with 2 args.
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function twoargs(i32, f32) {
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ebb0(vx0: i32, vx1: f32):
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jump ebb1(vx0, vx1)
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ebb1(vx2: i32, vx3: f32):
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jump ebb0(vx2, vx3)
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}
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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(vx0: i32):
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brz vx0, ebb1
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ebb1:
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brnz vx0, ebb1()
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}
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function twoargs(i32, f32) {
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ebb0(vx0: i32, vx1: f32):
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brz vx0, ebb1(vx0, vx1)
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ebb1(vx2: i32, vx3: f32):
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brnz vx0, ebb0(vx2, vx3)
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}
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function jumptable() {
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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:
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trap
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ebb20:
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trap
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ebb30:
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trap
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ebb40:
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trap
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}
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