File: ldr_ext.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 (37 lines) | stat: -rw-r--r-- 785 bytes parent folder | download | duplicates (21) 
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
30
31
32
33
34
35
36
37
 
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s

define i32 @test1(i8* %t1) nounwind {
; CHECK: ldrb
    %tmp.u = load i8, i8* %t1
    %tmp1.s = zext i8 %tmp.u to i32
    ret i32 %tmp1.s
}

define i32 @test2(i16* %t1) nounwind {
; CHECK: ldrh
    %tmp.u = load i16, i16* %t1
    %tmp1.s = zext i16 %tmp.u to i32
    ret i32 %tmp1.s
}

define i32 @test3(i8* %t0) nounwind {
; CHECK: ldrsb
    %tmp.s = load i8, i8* %t0
    %tmp1.s = sext i8 %tmp.s to i32
    ret i32 %tmp1.s
}

define i32 @test4(i16* %t0) nounwind {
; CHECK: ldrsh
    %tmp.s = load i16, i16* %t0
    %tmp1.s = sext i16 %tmp.s to i32
    ret i32 %tmp1.s
}

define i32 @test5() nounwind {
; CHECK: mov r0, #0
; CHECK: ldrsh
    %tmp.s = load i16, i16* null
    %tmp1.s = sext i16 %tmp.s to i32
    ret i32 %tmp1.s
}