File: byte_offset.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (37 lines) | stat: -rw-r--r-- 993 bytes parent folder | download | duplicates (14) 
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 -passes='print<delinearization>' -disable-output 2>&1 | FileCheck %s

; CHECK: AccessFunction: ({0,+,%i2}<%outer.loop> + %unknown)
; CHECK-NEXT: failed to delinearize

; void foo(char A[], long i2, bool c) {
;   for (long i = 0; ; ++i) {
;     char *tmp = &A[i * i2];
;     if (c)
;       while (1)
;          *((float*)&tmp[arg << arg]) = 0;
;   }
; }

define void @foo(ptr %A, i64 %i2, i64 %arg, i1 %c) {
entry:
  br label %outer.loop

outer.loop:
  %outer.iv = phi i64 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]
  %i414 = mul nsw i64 %outer.iv, %i2
  %tmp = getelementptr inbounds i8, ptr %A, i64 %i414
  br i1 %c, label %inner.preheader, label %outer.latch

inner.preheader:
  %unknown = shl i64 %arg, %arg
  %arrayidx = getelementptr inbounds i8, ptr %tmp, i64 %unknown
  br label %inner.loop

inner.loop:
  store float 0.000000e+00, ptr %arrayidx, align 4
  br label %inner.loop

outer.latch:
  %outer.iv.next = add nuw nsw i64 %outer.iv, 1
  br label %outer.loop
}