File: combine_ir.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (35 lines) | stat: -rw-r--r-- 856 bytes parent folder | download | duplicates (13)
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
; RUN: llc -march=hexagon -disable-hsdr < %s | FileCheck %s

declare void @bar(i64)

; CHECK-LABEL: halfword:
; CHECK: combine(#0

define void @halfword(i16* nocapture %a) nounwind {
entry:
  %0 = load i16, i16* %a, align 2
  %1 = zext i16 %0 to i64
  %add.ptr = getelementptr inbounds i16, i16* %a, i32 1
  %2 = load i16, i16* %add.ptr, align 2
  %3 = zext i16 %2 to i64
  %4 = shl nuw nsw i64 %3, 16
  %ins = or i64 %4, %1
  tail call void @bar(i64 %ins) nounwind
  ret void
}

; CHECK-LABEL: byte:
; CHECK: combine(#0

define void @byte(i8* nocapture %a) nounwind {
entry:
  %0 = load i8, i8* %a, align 1
  %1 = zext i8 %0 to i64
  %add.ptr = getelementptr inbounds i8, i8* %a, i32 1
  %2 = load i8, i8* %add.ptr, align 1
  %3 = zext i8 %2 to i64
  %4 = shl nuw nsw i64 %3, 8
  %ins = or i64 %4, %1
  tail call void @bar(i64 %ins) nounwind
  ret void
}