Parse the BranchTable instruction format.

Resolve the jump table reference immediately since all jump tables are declared in the preamble.
2016-07-22 15:16:14 -07:00
parent f054d32f50
commit 28a5f007c4
3 changed files with 30 additions and 10 deletions
--- a/cranelift/tests/parser/branch.cton
+++ b/cranelift/tests/parser/branch.cton
@@ -44,11 +44,12 @@ ebb1(vx2: i32, vx3: f32):
    brnz vx0, ebb0(vx2, vx3)
 }

-function jumptable() {
+function jumptable(i32) {
    jt200 = jump_table 0, 0
    jt2 = jump_table 0, 0, ebb10, ebb40, ebb20, ebb30

-ebb10:
+ebb10(v3: i32):
+    br_table v3, jt2
    trap
 ebb20:
    trap
--- a/cranelift/tests/parser/branch.cton.ref
+++ b/cranelift/tests/parser/branch.cton.ref
@@ -38,11 +38,12 @@ ebb1(vx2: i32, vx3: f32):
    brnz vx0, ebb0(vx2, vx3)
 }

-function jumptable() {
+function jumptable(i32) {
    jt0 = jump_table 0
    jt1 = jump_table 0, 0, ebb0, ebb3, ebb1, ebb2

-ebb0:
+ebb0(vx0: i32):
+    br_table vx0, jt1
    trap

 ebb1: