File: cast-mul-select.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 (29 lines) | stat: -rw-r--r-- 670 bytes parent folder | download 
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
 
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | notcast

define i32 @mul(i32 %x, i32 %y) {
  %A = trunc i32 %x to i8
  %B = trunc i32 %y to i8
  %C = mul i8 %A, %B
  %D = zext i8 %C to i32
  ret i32 %D
}

define i32 @select1(i1 %cond, i32 %x, i32 %y, i32 %z) {
  %A = trunc i32 %x to i8
  %B = trunc i32 %y to i8
  %C = trunc i32 %z to i8
  %D = add i8 %A, %B
  %E = select i1 %cond, i8 %C, i8 %D
  %F = zext i8 %E to i32
  ret i32 %F
}

define i8 @select2(i1 %cond, i8 %x, i8 %y, i8 %z) {
  %A = zext i8 %x to i32
  %B = zext i8 %y to i32
  %C = zext i8 %z to i32
  %D = add i32 %A, %B
  %E = select i1 %cond, i32 %C, i32 %D
  %F = trunc i32 %E to i8
  ret i8 %F
}