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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

87 lines
1.5 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -verify-machineinstrs | FileCheck %s
target triple = "wasm32-unknown-unknown"
; Test that switches are lowered correctly in the presence of an
; unreachable default branch target.
; CHECK-LABEL: foo:
; CHECK-NEXT: .functype foo (i32) -> (i32)
; CHECK-NEXT: block
; CHECK-NEXT: block
; CHECK-NEXT: local.get 0
; CHECK-NEXT: br_table {0, 1, 0}
; CHECK-NEXT: .LBB0_1:
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const 0
; CHECK-NEXT: return
; CHECK-NEXT: .LBB0_2:
; CHECK-NEXT: end_block
; CHECK-NEXT: i32.const 1
; CHECK-NEXT: end_function
define i32 @foo(i32 %x) {
entry:
switch i32 %x, label %unreachable [
i32 0, label %bb0
i32 1, label %bb1
]
bb0:
ret i32 0
bb1:
ret i32 1
unreachable:
unreachable
}
; CHECK-LABEL: split:
; CHECK: .functype split (i32) -> ()
; CHECK: block
; CHECK: br_if 0
; CHECK: block
; CHECK: block
; CHECK: br_table {1, 1, 0}
; CHECK: .LBB1_2
; CHECK: end_block
; CHECK: br_table {0, 0, 0, 0, 0, 0, 0, 0}
; CHECK: .LBB1_3
; CHECK: end_block
; CHECK: unreachable
; CHECK: .LBB1_4
; CHECK: end_block
; CHECK: end_function
define void @split(i8 %c) {
entry:
switch i8 %c, label %sw.default [
i8 114, label %return
i8 103, label %sw.bb1
i8 98, label %sw.bb2
i8 97, label %sw.bb3
i8 48, label %sw.bb4
i8 49, label %sw.bb5
]
sw.bb1:
unreachable
sw.bb2:
unreachable
sw.bb3:
unreachable
sw.bb4:
unreachable
sw.bb5:
unreachable
sw.default:
unreachable
return:
ret void
}