File: apint-cast.ll

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (20 lines) | stat: -rw-r--r-- 933 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
 
; Tests to make sure elimination of casts is working correctly
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | notcast

define i17 @test1(i17 %a) {
        %tmp = zext i17 %a to i37               ; <i37> [#uses=2]
        %tmp21 = lshr i37 %tmp, 8               ; <i37> [#uses=1]
        %tmp5 = shl i37 %tmp, 8         ; <i37> [#uses=1]
        %tmp.upgrd.32 = or i37 %tmp21, %tmp5            ; <i37> [#uses=1]
        %tmp.upgrd.3 = trunc i37 %tmp.upgrd.32 to i17   ; <i17> [#uses=1]
        ret i17 %tmp.upgrd.3
}

define i167 @test2(i167 %a) {
        %tmp = zext i167 %a to i577               ; <i577> [#uses=2]
        %tmp21 = lshr i577 %tmp, 9               ; <i577> [#uses=1]
        %tmp5 = shl i577 %tmp, 8         ; <i577> [#uses=1]
        %tmp.upgrd.32 = or i577 %tmp21, %tmp5            ; <i577> [#uses=1]
        %tmp.upgrd.3 = trunc i577 %tmp.upgrd.32 to i167  ; <i167> [#uses=1]
        ret i167 %tmp.upgrd.3
}