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llvm-mirror/test/CodeGen/WebAssembly/switch-unreachable-default.ll
Thomas Lively 81bb5f99ad [WebAssembly] Remove datalayout strings from llc tests
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
2021-07-14 11:17:08 -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
}