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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
| ; RUN: opt %loadPolly -analyze -polly-detect-fortran-arrays \
; RUN: -polly-scops -polly-allow-nonaffine -polly-invariant-load-hoisting < %s | FileCheck %s
; This testcase is the corresponding LLVM for testfunc:
; PROGRAM main
; INTEGER, DIMENSION(1) :: xs
;
; CALL testfunc(xs, 10)
; CONTAINS
; SUBROUTINE func(xs, n)
; IMPLICIT NONE
; INTEGER, DIMENSION(:), INTENT(INOUT) :: xs
; INTEGER, INTENT(IN) :: n
; INTEGER :: i
; DO i = 1, n
; xs(i) = 1
; END DO
;
; END SUBROUTINE func
; END PROGRAM
target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"
module asm "\09.ident\09\22GCC: (GNU) 4.6.4 LLVM: 3.3.1\22"
%"struct.array1_integer(kind=4)" = type { i8*, i64, i64, [1 x %struct.descriptor_dimension] }
%struct.descriptor_dimension = type { i64, i64, i64 }
define internal void @testfunc(%"struct.array1_integer(kind=4)"* noalias %xs, i32* noalias %n) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%tmp = getelementptr inbounds %"struct.array1_integer(kind=4)", %"struct.array1_integer(kind=4)"* %xs, i64 0, i32 3, i64 0, i32 0
%tmp1 = load i64, i64* %tmp, align 8
%tmp2 = icmp eq i64 %tmp1, 0
%tmp3 = select i1 %tmp2, i64 1, i64 %tmp1
%tmp4 = bitcast %"struct.array1_integer(kind=4)"* %xs to i32**
%tmp5 = load i32*, i32** %tmp4, align 8
%tmp6 = load i32, i32* %n, align 4
%tmp7 = icmp sgt i32 %tmp6, 0
br i1 %tmp7, label %"6.preheader", label %return
"6.preheader": ; preds = %entry.split
br label %"6"
"6": ; preds = %"6", %"6.preheader"
%tmp8 = phi i32 [ %tmp14, %"6" ], [ 1, %"6.preheader" ]
%tmp9 = sext i32 %tmp8 to i64
%tmp10 = mul i64 %tmp3, %tmp9
%tmp11 = sub i64 %tmp10, %tmp3
%tmp12 = getelementptr i32, i32* %tmp5, i64 %tmp11
; store
store i32 1, i32* %tmp12, align 4
%tmp13 = icmp eq i32 %tmp8, %tmp6
%tmp14 = add i32 %tmp8, 1
br i1 %tmp13, label %return.loopexit, label %"6"
return.loopexit: ; preds = %"6"
br label %return
return: ; preds = %return.loopexit, %entry.split
ret void
}
; CHECK: MayWriteAccess := [Reduction Type: NONE] [Fortran array descriptor: xs] [Scalar: 0]
|