File: ldm-merge-struct.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 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 (21 lines) | stat: -rw-r--r-- 732 bytes parent folder | download | duplicates (18) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s
target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv6m-none--eabi"

%struct.S = type { i32, i32 }

@s = common global %struct.S zeroinitializer, align 4

define i32 @f() {
entry:
; CHECK-LABEL: f:
; CHECK: ldm r[[BASE:[0-9]]],
; CHECK-NOT: subs r[[BASE]]
  %0 = load i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i32 0, i32 0), align 4
  %1 = load i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i32 0, i32 1), align 4
  %cmp = icmp sgt i32 %0, %1
  %2 = sub i32 0, %1
  %cond.p = select i1 %cmp, i32 %1, i32 %2
  %cond = add i32 %cond.p, %0
  ret i32 %cond
}