File: bfx.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (28 lines) | stat: -rw-r--r-- 556 bytes parent folder | download | duplicates (37) 
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
 
; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s

define i32 @sbfx1(i32 %a) {
; CHECK: sbfx1
; CHECK: sbfx r0, r0, #7, #11
	%t1 = lshr i32 %a, 7
	%t2 = trunc i32 %t1 to i11
	%t3 = sext i11 %t2 to i32
	ret i32 %t3
}

define i32 @ubfx1(i32 %a) {
; CHECK: ubfx1
; CHECK: ubfx r0, r0, #7, #11
	%t1 = lshr i32 %a, 7
	%t2 = trunc i32 %t1 to i11
	%t3 = zext i11 %t2 to i32
	ret i32 %t3
}

define i32 @ubfx2(i32 %a) {
; CHECK: ubfx2
; CHECK: ubfx r0, r0, #7, #11
	%t1 = lshr i32 %a, 7
	%t2 = and i32 %t1, 2047
	ret i32 %t2
}