File: 2008-02-12-SMAXTripCount.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (17 lines) | stat: -rw-r--r-- 409 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s
; PR2002

; CHECK: Loop %loop: backedge-taken count is (100 + (-100 smax %n))
define void @foo(i8 %n) {
entry:
	br label %loop
loop:
	%i = phi i8 [ -100, %entry ], [ %i.inc, %next ]
	%cond = icmp slt i8 %i, %n
	br i1 %cond, label %next, label %return
next:
        %i.inc = add i8 %i, 1
	br label %loop
return:
	ret void
}