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
| ; RUN: opt %loadPolly -S -polly-use-llvm-names -polly-scops \
; RUN: -polly-acc-dump-code -analyze \
; RUN: -polly-invariant-load-hoisting < %s | FileCheck %s -check-prefix=SCOP
; RUN: opt %loadPolly -S -polly-use-llvm-names -polly-codegen-ppcg \
; RUN: -polly-acc-dump-code -polly-stmt-granularity=bb \
; RUN: -polly-invariant-load-hoisting < %s | FileCheck %s -check-prefix=CODE
; RUN: opt %loadPolly -S -polly-use-llvm-names -polly-codegen-ppcg \
; RUN: -polly-invariant-load-hoisting -polly-stmt-granularity=bb < %s \
; RUN: | FileCheck %s -check-prefix=HOST-IR
; REQUIRES: pollyacc
; SCOP: Invariant Accesses: {
; SCOP-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; SCOP-NEXT: { Stmt_loop_a[i0] -> MemRef_p[0] };
; SCOP-NEXT: Execution Context: { : }
; SCOP-NEXT: }
; CODE: # kernel0
; CODE-NEXT: {
; CODE-NEXT: if (32 * b0 + t0 <= 1025) {
; CODE-NEXT: Stmt_loop(32 * b0 + t0);
; CODE-NEXT: write(0);
; CODE-NEXT: }
; CODE-NEXT: sync0();
; CODE-NEXT: }
; Check that we generate a correct "always false" branch.
; HOST-IR: br i1 false, label %polly.start, label %loop.pre_entry_bb
; This test case checks that we generate correct code if PPCGCodeGeneration
; decides a build is unsuccessful with invariant load hoisting enabled.
;
; There is a conditional branch which switches between the original code and
; the new code. We try to set this conditional branch to branch on false.
; However, invariant load hoisting changes the structure of the scop, so we
; need to change the way we *locate* this instruction.
target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
target triple = "i386-apple-macosx10.12.0"
define void @foo(float* %A, float* %p) {
entry:
br label %loop
loop:
%indvar = phi i64 [0, %entry], [%indvar.next, %loop]
%indvar.next = add i64 %indvar, 1
%invariant = load float, float* %p
%ptr = getelementptr float, float* %A, i64 %indvar
store float 42.0, float* %ptr
%cmp = icmp sle i64 %indvar, 1024
br i1 %cmp, label %loop, label %loop2
loop2:
%indvar2 = phi i64 [0, %loop], [%indvar2.next, %loop2]
%indvar2f = phi float [%invariant, %loop], [%indvar2f, %loop2]
%indvar2.next = add i64 %indvar2, 1
store float %indvar2f, float* %A
%cmp2 = icmp sle i64 %indvar2, 1024
br i1 %cmp2, label %loop2, label %end
end:
ret void
}
|