forked from OSchip/llvm-project
136 lines
4.2 KiB
LLVM
136 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -basicaa -newgvn -enable-store-refinement -S | FileCheck %s
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
;; Both of these tests are tests of phi nodes that end up all equivalent to each other
|
|
;; Without proper leader ordering, we will end up cycling the leader between all of them and never converge.
|
|
|
|
define void @foo() {
|
|
; CHECK-LABEL: @foo(
|
|
; CHECK-NEXT: bb:
|
|
; CHECK-NEXT: br label [[BB1:%.*]]
|
|
; CHECK: bb1:
|
|
; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ 1, [[BB18:%.*]] ]
|
|
; CHECK-NEXT: br label [[BB2:%.*]]
|
|
; CHECK: bb2:
|
|
; CHECK-NEXT: br label [[BB4:%.*]]
|
|
; CHECK: bb4:
|
|
; CHECK-NEXT: br i1 undef, label [[BB18]], label [[BB7:%.*]]
|
|
; CHECK: bb7:
|
|
; CHECK-NEXT: br label [[BB9:%.*]]
|
|
; CHECK: bb9:
|
|
; CHECK-NEXT: br i1 undef, label [[BB2]], label [[BB11:%.*]]
|
|
; CHECK: bb11:
|
|
; CHECK-NEXT: br i1 undef, label [[BB16:%.*]], label [[BB14:%.*]]
|
|
; CHECK: bb14:
|
|
; CHECK-NEXT: br label [[BB4]]
|
|
; CHECK: bb16:
|
|
; CHECK-NEXT: br label [[BB7]]
|
|
; CHECK: bb18:
|
|
; CHECK-NEXT: br label [[BB1]]
|
|
;
|
|
bb:
|
|
br label %bb1
|
|
|
|
bb1: ; preds = %bb18, %bb
|
|
%tmp = phi i32 [ 0, %bb ], [ 1, %bb18 ]
|
|
br label %bb2
|
|
|
|
bb2: ; preds = %bb9, %bb1
|
|
%tmp3 = phi i32 [ %tmp, %bb1 ], [ %tmp8, %bb9 ]
|
|
br label %bb4
|
|
|
|
bb4: ; preds = %bb14, %bb2
|
|
%tmp5 = phi i32 [ %tmp3, %bb2 ], [ %tmp15, %bb14 ]
|
|
br i1 undef, label %bb18, label %bb7
|
|
|
|
bb7: ; preds = %bb16, %bb4
|
|
%tmp8 = phi i32 [ %tmp17, %bb16 ], [ %tmp5, %bb4 ]
|
|
br label %bb9
|
|
|
|
bb9: ; preds = %bb7
|
|
br i1 undef, label %bb2, label %bb11
|
|
|
|
bb11: ; preds = %bb9
|
|
br i1 undef, label %bb16, label %bb14
|
|
|
|
bb14: ; preds = %bb11
|
|
%tmp15 = phi i32 [ %tmp8, %bb11 ]
|
|
br label %bb4
|
|
|
|
bb16: ; preds = %bb11
|
|
%tmp17 = phi i32 [ %tmp8, %bb11 ]
|
|
br label %bb7
|
|
|
|
bb18: ; preds = %bb4
|
|
br label %bb1
|
|
}
|
|
|
|
%struct.a = type {}
|
|
%struct.b = type {}
|
|
|
|
declare void @c.d.p(i64, i8*)
|
|
|
|
define void @e(i32 %a0, i32 %a1, %struct.a** %p2) {
|
|
; CHECK-LABEL: @e(
|
|
; CHECK-NEXT: [[F:%.*]] = alloca i32
|
|
; CHECK-NEXT: store i32 [[A0:%.*]], i32* [[F]], !g !0
|
|
; CHECK-NEXT: br label [[H:%.*]]
|
|
; CHECK: h:
|
|
; CHECK-NEXT: call void @c.d.p(i64 8, i8* undef)
|
|
; CHECK-NEXT: [[I:%.*]] = load i32, i32* [[F]]
|
|
; CHECK-NEXT: [[J:%.*]] = load i32, i32* null
|
|
; CHECK-NEXT: [[K:%.*]] = icmp eq i32 [[I]], [[J]]
|
|
; CHECK-NEXT: br i1 [[K]], label [[L:%.*]], label [[Q:%.*]]
|
|
; CHECK: l:
|
|
; CHECK-NEXT: br label [[R:%.*]]
|
|
; CHECK: q:
|
|
; CHECK-NEXT: [[M:%.*]] = load %struct.a*, %struct.a** null
|
|
; CHECK-NEXT: br label [[R]]
|
|
; CHECK: r:
|
|
; CHECK-NEXT: switch i32 undef, label [[N:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[S:%.*]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: s:
|
|
; CHECK-NEXT: store i32 [[A1:%.*]], i32* [[F]], !g !0
|
|
; CHECK-NEXT: br label [[H]]
|
|
; CHECK: n:
|
|
; CHECK-NEXT: [[O:%.*]] = load %struct.a*, %struct.a** [[P2:%.*]]
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%f = alloca i32
|
|
store i32 %a0, i32* %f, !g !0
|
|
br label %h
|
|
|
|
h: ; preds = %s, %0
|
|
call void @c.d.p(i64 8, i8* undef)
|
|
%i = load i32, i32* %f
|
|
%j = load i32, i32* null
|
|
%k = icmp eq i32 %i, %j
|
|
br i1 %k, label %l, label %q
|
|
|
|
l: ; preds = %h
|
|
br label %r
|
|
|
|
q: ; preds = %h
|
|
%m = load %struct.a*, %struct.a** null
|
|
%1 = bitcast %struct.a* %m to %struct.b*
|
|
br label %r
|
|
|
|
r: ; preds = %q, %l
|
|
switch i32 undef, label %n [
|
|
i32 0, label %s
|
|
]
|
|
|
|
s: ; preds = %r
|
|
store i32 %a1, i32* %f, !g !0
|
|
br label %h
|
|
|
|
n: ; preds = %r
|
|
%o = load %struct.a*, %struct.a** %p2
|
|
%2 = bitcast %struct.a* %o to %struct.b*
|
|
ret void
|
|
}
|
|
|
|
!0 = !{}
|