llvm-6502/test/CodeGen/X86/switch-default-only.ll at 4e8f68f24593b70164f09fec837f4bca3fd8951d - llvm-6502 - Applefritter: Git

6502/llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-04 05:17:07 +00:00

Files

Hans Wennborg 5c6c5e23bd Switch lowering: Fix broken 'Figure out which block is next' code

This doesn't seem to have worked in a long time, but other optimizations
would clean it up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222961 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-29 21:17:05 +00:00

15 lines

315 B

LLVM

Raw Blame History

 ; RUN: llc -O0 -fast-isel=false -march=x86 < %s | FileCheck %s
 ; No need for branching when the default and only destination follows
 ; immediately after the switch.
 ; CHECK-LABEL: no_branch:
 ; CHECK-NOT: jmp
 ; CHECK: ret
 define void @no_branch(i32 %x) {
 entry:
   switch i32 %x, label %exit [ ]
 exit:
   ret void
 }