File: thumb2-sxt_rot.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-- 687 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 | llc -march=thumb -mattr=+thumb2 | \
; RUN:   grep sxtb | count 2
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \
; RUN:   grep sxtb | grep ror | count 1
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \
; RUN:   grep sxtab | count 1

define i32 @test0(i8 %A) {
        %B = sext i8 %A to i32
	ret i32 %B
}

define i8 @test1(i32 %A) signext {
	%B = lshr i32 %A, 8
	%C = shl i32 %A, 24
	%D = or i32 %B, %C
	%E = trunc i32 %D to i8
	ret i8 %E
}

define i32 @test2(i32 %A, i32 %X) signext {
	%B = lshr i32 %A, 8
	%C = shl i32 %A, 24
	%D = or i32 %B, %C
	%E = trunc i32 %D to i8
        %F = sext i8 %E to i32
        %G = add i32 %F, %X
	ret i32 %G
}