File: avoid-smax-0.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 (37 lines) | stat: -rw-r--r-- 790 bytes parent folder | download | duplicates (15) 
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: opt < %s -scalar-evolution -analyze | FileCheck %s

; CHECK: Loop %bb3: backedge-taken count is (-1 + %n)

; We don't want to use a max in the trip count expression in
; this testcase.

define void @foo(i32 %n, i32* %p, i32* %q) nounwind {
entry:
	icmp sgt i32 %n, 0
	br i1 %0, label %bb, label %return

bb:
	load i32, i32* %q, align 4
	icmp eq i32 %1, 0
	br i1 %2, label %return, label %bb3.preheader

bb3.preheader:
	br label %bb3

bb3:
	%i.0 = phi i32 [ %7, %bb3 ], [ 0, %bb3.preheader ]
	getelementptr i32, i32* %p, i32 %i.0
	load i32, i32* %3, align 4
	add i32 %4, 1
	getelementptr i32, i32* %p, i32 %i.0
	store i32 %5, i32* %6, align 4
	add i32 %i.0, 1
	icmp slt i32 %7, %n
	br i1 %8, label %bb3, label %return.loopexit

return.loopexit:
	br label %return

return:
	ret void
}