d06d43a9e8
(NFC modulo debug output changes) Add generic helper to print phi operands (incoming values) together with their incoming blocks. As more and more transforms are added, keeping the incoming blocks of phis becomes more important. Print incoming blocks via VPPhiAcessors, to make debugging easier.
72 lines
2.7 KiB
LLVM
72 lines
2.7 KiB
LLVM
; REQUIRES: asserts
|
|
|
|
; RUN: opt -passes=loop-vectorize -pass-remarks=loop-vectorize -enable-vplan-native-path -debug -disable-output %s 2>&1 | FileCheck %s
|
|
|
|
@arr2 = external global [8 x i64], align 16
|
|
@arr = external global [8 x [8 x i64]], align 16
|
|
|
|
define void @foo(i64 %n) {
|
|
; CHECK: VPlan 'Plain CFG
|
|
; CHECK-NEXT: {
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: ir-bb<entry>:
|
|
; CHECK-NEXT: Successor(s): outer.header
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: outer.header:
|
|
; CHECK-NEXT: WIDEN-PHI ir<%outer.iv> = phi [ ir<%outer.iv.next>, outer.latch ], [ ir<0>, ir-bb<entry> ]
|
|
; CHECK-NEXT: EMIT ir<%gep.1> = getelementptr ir<@arr2>, ir<0>, ir<%outer.iv>
|
|
; CHECK-NEXT: EMIT store ir<%outer.iv>, ir<%gep.1>
|
|
; CHECK-NEXT: EMIT ir<%add> = add ir<%outer.iv>, ir<%n>
|
|
; CHECK-NEXT: Successor(s): inner
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: inner:
|
|
; CHECK-NEXT: WIDEN-PHI ir<%inner.iv> = phi [ ir<%inner.iv.next>, inner ], [ ir<0>, outer.header ]
|
|
; CHECK-NEXT: EMIT ir<%gep.2> = getelementptr ir<@arr>, ir<0>, ir<%inner.iv>, ir<%outer.iv>
|
|
; CHECK-NEXT: EMIT store ir<%add>, ir<%gep.2>
|
|
; CHECK-NEXT: EMIT ir<%inner.iv.next> = add ir<%inner.iv>, ir<1>
|
|
; CHECK-NEXT: EMIT ir<%inner.ec> = icmp ir<%inner.iv.next>, ir<8>
|
|
; CHECK-NEXT: EMIT branch-on-cond ir<%inner.ec>
|
|
; CHECK-NEXT: Successor(s): outer.latch, inner
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: outer.latch:
|
|
; CHECK-NEXT: EMIT ir<%outer.iv.next> = add ir<%outer.iv>, ir<1>
|
|
; CHECK-NEXT: EMIT ir<%outer.ec> = icmp ir<%outer.iv.next>, ir<8>
|
|
; CHECK-NEXT: EMIT branch-on-cond ir<%outer.ec>
|
|
; CHECK-NEXT: Successor(s): ir-bb<exit>, outer.header
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: ir-bb<exit>:
|
|
; CHECK-NEXT: No successors
|
|
; CHECK-NEXT: }
|
|
entry:
|
|
br label %outer.header
|
|
|
|
outer.header:
|
|
%outer.iv = phi i64 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]
|
|
%gep.1 = getelementptr inbounds [8 x i64], ptr @arr2, i64 0, i64 %outer.iv
|
|
store i64 %outer.iv, ptr %gep.1, align 4
|
|
%add = add nsw i64 %outer.iv, %n
|
|
br label %inner
|
|
|
|
inner:
|
|
%inner.iv = phi i64 [ 0, %outer.header ], [ %inner.iv.next, %inner ]
|
|
%gep.2 = getelementptr inbounds [8 x [8 x i64]], ptr @arr, i64 0, i64 %inner.iv, i64 %outer.iv
|
|
store i64 %add, ptr %gep.2, align 4
|
|
%inner.iv.next = add nuw nsw i64 %inner.iv, 1
|
|
%inner.ec = icmp eq i64 %inner.iv.next, 8
|
|
br i1 %inner.ec, label %outer.latch, label %inner
|
|
|
|
outer.latch:
|
|
%outer.iv.next = add nuw nsw i64 %outer.iv, 1
|
|
%outer.ec = icmp eq i64 %outer.iv.next, 8
|
|
br i1 %outer.ec, label %exit, label %outer.header, !llvm.loop !1
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK: remark: <unknown>:0:0: vectorized outer loop (vectorization width: 4, interleaved count: 1)
|
|
|
|
!1 = distinct !{!1, !2, !3}
|
|
!2 = !{!"llvm.loop.vectorize.width", i32 4}
|
|
!3 = !{!"llvm.loop.vectorize.enable", i1 true}
|