File: 2014-06-10-SwitchContiguousOpt.ll

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.6-3
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,245,028 kB
  • sloc: cpp: 7,619,726; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,675; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (27 lines) | stat: -rw-r--r-- 467 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
; RUN: opt < %s -passes=lower-switch -S | FileCheck %s
; CHECK-NOT: icmp eq i32 %0, 1

define i32 @foo(i32 %a) #0 {
entry:
  %retval = alloca i32, align 4
  %a.addr = alloca i32, align 4
  store i32 %a, ptr %a.addr, align 4
  %0 = load i32, ptr %a.addr, align 4
  switch i32 %0, label %sw.default [
    i32 0, label %sw.bb
    i32 1, label %sw.bb1
    i32 2, label %sw.bb2
  ]

sw.bb:
  ret i32 12

sw.bb1:
  ret i32 4

sw.bb2:
  ret i32 2

sw.default:
  ret i32 9
}