File: scalar-store-from-same-bb.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (32 lines) | stat: -rw-r--r-- 760 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
 
; RUN: opt %loadPolly \
; RUN: -polly-codegen -S < %s | FileCheck %s

; This test ensures that the expression N + 1 that is stored in the phi-node
; alloca, is directly computed and not incorrectly transfered through memory.

; CHECK: store i64 [[REG:%.*]], ptr %res.phiops
; CHECK: [[REG]] = add i64 %N, 1

define i64 @foo(ptr %A, i64 %N) {
entry:
  br label %next

next:
  %cond = icmp eq i64 %N, 0
  br i1 %cond, label %loop, label %merge

loop:
  %indvar = phi i64 [0, %next], [%indvar.next, %loop]
  %indvar.next = add i64 %indvar, 1
  %sum = add i64 %N, 1
  store float 4.0, ptr %A
  %cmp = icmp sle i64 %indvar.next, 100
  br i1 %cmp, label %loop, label %merge

merge:
  %res = phi i64 [%sum, %loop], [0, %next]
  br label %exit

exit:
  ret i64 %res
}