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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=newgvn -enable-phi-of-ops=true -S -o - %s | FileCheck %s
define void @hoisted-load(i8* %p, i8* %q) {
; CHECK-LABEL: @hoisted-load(
; CHECK-NEXT: bb56:
; CHECK-NEXT: [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
; CHECK-NEXT: br label [[BB57:%.*]]
; CHECK: bb57:
; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i1 [ true, [[BB56:%.*]] ], [ [[N62:%.*]], [[BB229:%.*]] ]
; CHECK-NEXT: [[N59:%.*]] = phi i1 [ false, [[BB229]] ], [ true, [[BB56]] ]
; CHECK-NEXT: [[IDX:%.*]] = phi i8 [ 0, [[BB56]] ], [ [[INC:%.*]], [[BB229]] ]
; CHECK-NEXT: [[N62]] = icmp ne i8 [[N60]], 2
; CHECK-NEXT: br i1 [[PHIOFOPS]], label [[BB229]], label [[BB237:%.*]]
; CHECK: bb229:
; CHECK-NEXT: [[INC]] = add i8 [[IDX]], 1
; CHECK-NEXT: store i8 [[INC]], i8* [[Q:%.*]], align 1
; CHECK-NEXT: br label [[BB57]]
; CHECK: bb237:
; CHECK-NEXT: ret void
;
bb56:
%n60 = load i8, i8* %p
br label %bb57
bb57:
%n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
%idx = phi i8 [0, %bb56], [%inc, %bb229]
%n62 = icmp ne i8 %n60, 2
%n63 = or i1 %n59, %n62
br i1 %n63, label %bb229, label %bb237
bb229:
%inc = add i8 %idx, 1
store i8 %inc, i8* %q
br label %bb57
bb237:
ret void
}
define void @store-in-loop(i8* %p, i8* %q) {
; CHECK-LABEL: @store-in-loop(
; CHECK-NEXT: bb56:
; CHECK-NEXT: br label [[BB57:%.*]]
; CHECK: bb57:
; CHECK-NEXT: [[N59:%.*]] = phi i1 [ false, [[BB229:%.*]] ], [ true, [[BB56:%.*]] ]
; CHECK-NEXT: [[IDX:%.*]] = phi i8 [ 0, [[BB56]] ], [ [[INC:%.*]], [[BB229]] ]
; CHECK-NEXT: [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
; CHECK-NEXT: [[N62:%.*]] = icmp ne i8 [[N60]], 2
; CHECK-NEXT: [[N63:%.*]] = or i1 [[N59]], [[N62]]
; CHECK-NEXT: br i1 [[N63]], label [[BB229]], label [[BB237:%.*]]
; CHECK: bb229:
; CHECK-NEXT: [[INC]] = add i8 [[IDX]], 1
; CHECK-NEXT: store i8 [[INC]], i8* [[Q:%.*]], align 1
; CHECK-NEXT: br label [[BB57]]
; CHECK: bb237:
; CHECK-NEXT: ret void
;
bb56:
br label %bb57
bb57:
%n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
%idx = phi i8 [0, %bb56], [%inc, %bb229]
%n60 = load i8, i8* %p
%n62 = icmp ne i8 %n60, 2
%n63 = or i1 %n59, %n62
br i1 %n63, label %bb229, label %bb237
bb229:
%inc = add i8 %idx, 1
store i8 %inc, i8* %q
br label %bb57
bb237:
ret void
}
; TODO: we should support this case
define void @no-alias-store-in-loop(i8* noalias %p, i8* noalias %q) {
; CHECK-LABEL: @no-alias-store-in-loop(
; CHECK-NEXT: bb56:
; CHECK-NEXT: br label [[BB57:%.*]]
; CHECK: bb57:
; CHECK-NEXT: [[N59:%.*]] = phi i1 [ false, [[BB229:%.*]] ], [ true, [[BB56:%.*]] ]
; CHECK-NEXT: [[IDX:%.*]] = phi i8 [ 0, [[BB56]] ], [ [[INC:%.*]], [[BB229]] ]
; CHECK-NEXT: [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
; CHECK-NEXT: [[N62:%.*]] = icmp ne i8 [[N60]], 2
; CHECK-NEXT: [[N63:%.*]] = or i1 [[N59]], [[N62]]
; CHECK-NEXT: br i1 [[N63]], label [[BB229]], label [[BB237:%.*]]
; CHECK: bb229:
; CHECK-NEXT: [[INC]] = add i8 [[IDX]], 1
; CHECK-NEXT: store i8 [[INC]], i8* [[Q:%.*]], align 1
; CHECK-NEXT: br label [[BB57]]
; CHECK: bb237:
; CHECK-NEXT: ret void
;
bb56:
br label %bb57
bb57:
%n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
%idx = phi i8 [0, %bb56], [%inc, %bb229]
%n60 = load i8, i8* %p
%n62 = icmp ne i8 %n60, 2
%n63 = or i1 %n59, %n62
br i1 %n63, label %bb229, label %bb237
bb229:
%inc = add i8 %idx, 1
store i8 %inc, i8* %q
br label %bb57
bb237:
ret void
}
define void @function-in-loop(i8* %p) {
; CHECK-LABEL: @function-in-loop(
; CHECK-NEXT: bb56:
; CHECK-NEXT: br label [[BB57:%.*]]
; CHECK: bb57:
; CHECK-NEXT: [[N59:%.*]] = phi i1 [ false, [[BB229:%.*]] ], [ true, [[BB56:%.*]] ]
; CHECK-NEXT: [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
; CHECK-NEXT: [[N62:%.*]] = icmp ne i8 [[N60]], 2
; CHECK-NEXT: [[N63:%.*]] = or i1 [[N59]], [[N62]]
; CHECK-NEXT: br i1 [[N63]], label [[BB229]], label [[BB237:%.*]]
; CHECK: bb229:
; CHECK-NEXT: call void @f()
; CHECK-NEXT: br label [[BB57]]
; CHECK: bb237:
; CHECK-NEXT: ret void
;
bb56:
br label %bb57
bb57:
%n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
%n60 = load i8, i8* %p
%n62 = icmp ne i8 %n60, 2
%n63 = or i1 %n59, %n62
br i1 %n63, label %bb229, label %bb237
bb229:
call void @f()
br label %bb57
bb237:
ret void
}
; TODO: we should support this case
define void @nowrite-function-in-loop(i8* %p) {
; CHECK-LABEL: @nowrite-function-in-loop(
; CHECK-NEXT: bb56:
; CHECK-NEXT: br label [[BB57:%.*]]
; CHECK: bb57:
; CHECK-NEXT: [[N59:%.*]] = phi i1 [ false, [[BB229:%.*]] ], [ true, [[BB56:%.*]] ]
; CHECK-NEXT: [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
; CHECK-NEXT: [[N62:%.*]] = icmp ne i8 [[N60]], 2
; CHECK-NEXT: [[N63:%.*]] = or i1 [[N59]], [[N62]]
; CHECK-NEXT: br i1 [[N63]], label [[BB229]], label [[BB237:%.*]]
; CHECK: bb229:
; CHECK-NEXT: call void @f() #[[ATTR0:[0-9]+]]
; CHECK-NEXT: br label [[BB57]]
; CHECK: bb237:
; CHECK-NEXT: ret void
;
bb56:
br label %bb57
bb57:
%n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
%n60 = load i8, i8* %p
%n62 = icmp ne i8 %n60, 2
%n63 = or i1 %n59, %n62
br i1 %n63, label %bb229, label %bb237
bb229:
call void @f() inaccessiblememonly
br label %bb57
bb237:
ret void
}
declare void @f()
|
