File: switch-table-bug.ll

package info (click to toggle)
llvm-toolchain-3.5 1%3A3.5-10
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 282,028 kB
  • ctags: 310,872
  • sloc: cpp: 1,883,926; ansic: 310,731; objc: 86,612; python: 79,565; asm: 65,844; sh: 9,829; makefile: 6,057; perl: 5,589; ml: 5,254; pascal: 3,285; lisp: 1,640; xml: 686; cs: 239; csh: 117
file content (41 lines) | stat: -rw-r--r-- 1,411 bytes parent folder | download | duplicates (2)
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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
; RUN: opt -S -simplifycfg < %s -mtriple=x86_64-apple-darwin12.0.0 | FileCheck %s
; rdar://17735071
target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin12.0.0"

; When tableindex can't fit into i2, we should extend the type to i3.
; CHECK-LABEL: @_TFO6reduce1E5toRawfS0_FT_Si
; CHECK: entry:
; CHECK-NEXT: sub i2 %0, -2
; CHECK-NEXT: zext i2 %switch.tableidx to i3
; CHECK-NEXT: getelementptr inbounds [4 x i64]* @switch.table, i32 0, i3 %switch.tableidx.zext
; CHECK-NEXT: load i64* %switch.gep
; CHECK-NEXT: ret i64 %switch.load
define i64 @_TFO6reduce1E5toRawfS0_FT_Si(i2) {
entry:
  switch i2 %0, label %1 [
    i2 0, label %2
    i2 1, label %3
    i2 -2, label %4
    i2 -1, label %5
  ]

; <label>:1                                       ; preds = %entry
  unreachable

; <label>:2                                       ; preds = %2
  br label %6

; <label>:3                                       ; preds = %4
  br label %6

; <label>:4                                       ; preds = %6
  br label %6

; <label>:5                                       ; preds = %8
  br label %6

; <label>:6                                      ; preds = %3, %5, %7, %9
  %7 = phi i64 [ 3, %5 ], [ 2, %4 ], [ 1, %3 ], [ 0, %2 ]
  ret i64 %7
}