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
|
; RUN: opt %loadPolly -polly-import-jscop \
; RUN: -polly-codegen -polly-invariant-load-hoisting -S \
; RUN: 2>&1 < %s | FileCheck %s
; Setting new access functions where the base pointer of the array that is newly
; accessed is only loaded within the scop itself caused incorrect code to be
; generated when invariant load hoisting is disabled. This test case checks
; that in case invariant load hoisting is enabled, we generate correct code.
; CHECK: %polly.access.polly.access.X.load = getelementptr float, ptr %polly.access.X.load, i64 %polly.indvar
define void @invariant_base_ptr(ptr noalias %Array, ptr noalias %X,
ptr noalias %C) {
start:
br label %loop
loop:
%indvar = phi i64 [0, %start], [%indvar.next, %latch]
%indvar.next = add i64 %indvar, 1
%cmp = icmp slt i64 %indvar, 1024
br i1 %cmp, label %body, label %exit
body:
%gep= getelementptr float, ptr %Array, i64 %indvar
store float 42.0, ptr %gep
br label %body2
body2:
%Base = load ptr, ptr %X
%gep2 = getelementptr float, ptr %Base, i64 %indvar
%val2 = load float, ptr %gep2
store float %val2, ptr %C
br label %latch
latch:
br label %loop
exit:
ret void
}
|
