File: switch-constant-expr.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (44 lines) | stat: -rw-r--r-- 953 bytes parent folder | download | duplicates (15) 
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
42
43
44
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s

@g = global i32 0

; PR30486
define i32 @single_case() {
; CHECK-LABEL: @single_case(
; CHECK-NEXT:    switch i32 ptrtoint (i32* @g to i32), label %x [
; CHECK-NEXT:    ]
; CHECK:       x:
; CHECK-NEXT:    ret i32 0
;
  switch i32 add (i32 ptrtoint (i32* @g to i32), i32 -1), label %x []
x:
  ret i32 0
}

define i32 @multiple_cases() {
; CHECK-LABEL: @multiple_cases(
; CHECK-NEXT:    switch i32 ptrtoint (i32* @g to i32), label %x [
; CHECK-NEXT:    i32 2, label %one
; CHECK-NEXT:    i32 3, label %two
; CHECK-NEXT:    ]
; CHECK:       x:
; CHECK-NEXT:    ret i32 0
; CHECK:       one:
; CHECK-NEXT:    ret i32 1
; CHECK:       two:
; CHECK-NEXT:    ret i32 2
;
  switch i32 add (i32 ptrtoint (i32* @g to i32), i32 -1), label %x [
  i32 1, label %one
  i32 2, label %two
  ]
x:
  ret i32 0

one:
  ret i32 1

two:
  ret i32 2
}