File: shl_sext.ll

package info (click to toggle)
llvm-2.7 2.7-6
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 59,992 kB
  • ctags: 49,499
  • sloc: cpp: 373,792; ansic: 16,885; sh: 12,614; asm: 6,809; ada: 3,083; ml: 2,942; python: 2,671; perl: 2,404; makefile: 1,691; pascal: 1,235; exp: 399; objc: 291; lisp: 184; csh: 117; xml: 38; f90: 36
file content (18 lines) | stat: -rw-r--r-- 720 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
; This test should not contain a sign extend
; RUN: llc < %s -march=ppc32 | not grep extsb 

define i32 @test(i32 %mode.0.i.0) {
        %tmp.79 = trunc i32 %mode.0.i.0 to i8           ; <i8> [#uses=1]
        %tmp.80 = sext i8 %tmp.79 to i32                ; <i32> [#uses=1]
        %tmp.81 = shl i32 %tmp.80, 24           ; <i32> [#uses=1]
        ret i32 %tmp.81
}

define i32 @test2(i32 %mode.0.i.0) {
        %tmp.79 = trunc i32 %mode.0.i.0 to i8           ; <i8> [#uses=1]
        %tmp.80 = sext i8 %tmp.79 to i32                ; <i32> [#uses=1]
        %tmp.81 = shl i32 %tmp.80, 16           ; <i32> [#uses=1]
        %tmp.82 = and i32 %tmp.81, 16711680             ; <i32> [#uses=1]
        ret i32 %tmp.82
}