File: 2008-01-29-AddICmp.ll

package info (click to toggle)
llvm-3.0 3.0-10
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 75,412 kB
  • sloc: cpp: 468,043; asm: 109,345; ansic: 13,782; sh: 12,935; ml: 4,716; python: 4,351; perl: 2,096; makefile: 1,905; pascal: 1,578; exp: 389; xml: 283; lisp: 187; csh: 117
file content (20 lines) | stat: -rw-r--r-- 529 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
; RUN: opt < %s -instcombine -S | not grep {a.off}
; PR1949

define i1 @test1(i32 %a) {
  %a.off = add i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp ult i32 %a.off, 4             ; <i1> [#uses=1]
  ret i1 %C
}

define i1 @test2(i32 %a) {
  %a.off = sub i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp ugt i32 %a.off, -5             ; <i1> [#uses=1]
  ret i1 %C
}

define i1 @test3(i32 %a) {
  %a.off = add i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp slt i32 %a.off, 2147483652             ; <i1> [#uses=1]
  ret i1 %C
}