File: ctrloop-large-ec.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 (23 lines) | stat: -rw-r--r-- 756 bytes parent folder | download | duplicates (25) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: llc -mcpu=ppc32 -verify-machineinstrs < %s | FileCheck %s
target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32"
target triple = "powerpc-unknown-linux-gnu"

define void @fn1() {
entry:
  br i1 undef, label %for.end, label %for.body

for.body:                                         ; preds = %for.body, %entry
  %inc3 = phi i64 [ %inc, %for.body ], [ undef, %entry ]
  %inc = add nsw i64 %inc3, 1
  %tobool = icmp eq i64 %inc, 0
  br i1 %tobool, label %for.end, label %for.body

for.end:                                          ; preds = %for.body, %entry
  ret void
}

; On PPC32, CTR is also 32 bits, and so cannot hold a 64-bit count.
; CHECK: @fn1
; CHECK-NOT: mtctr
; CHECK: blr