File: load-with-range-metadata.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (37 lines) | stat: -rw-r--r-- 1,012 bytes parent folder | download | duplicates (5) 
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 -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s

define i32 @slt_trip_count_with_range(ptr %ptr0, ptr %ptr1) {
; CHECK-LABEL: slt_trip_count_with_range
 entry:
  %limit = load i32, ptr %ptr0, !range !0
  br label %loop

 loop:
; CHECK: Loop %loop: constant max backedge-taken count is 98
  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
  %index.inc = add i32 %index, 1
  %continue = icmp slt i32 %index.inc, %limit
  br i1 %continue, label %loop, label %loop.exit

 loop.exit:
  ret i32 0
}

define i32 @ult_trip_count_with_range(ptr %ptr0, ptr %ptr1) {
; CHECK-LABEL: ult_trip_count_with_range
 entry:
  %limit = load i32, ptr %ptr0, !range !0
  br label %loop

 loop:
; CHECK: Loop %loop: constant max backedge-taken count is 98
  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
  %index.inc = add i32 %index, 1
  %continue = icmp ult i32 %index.inc, %limit
  br i1 %continue, label %loop, label %loop.exit

 loop.exit:
  ret i32 0
}

!0 = !{i32 1, i32 100}