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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S -O3 -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
define internal void @acc(ptr noalias noundef %val, ptr noalias noundef %prev) {
entry:
%0 = load i8, ptr %prev, align 1
%conv = zext i8 %0 to i32
%1 = load i8, ptr %val, align 1
%conv1 = zext i8 %1 to i32
%add = add nsw i32 %conv1, %conv
%conv2 = trunc i32 %add to i8
store i8 %conv2, ptr %val, align 1
ret void
}
; This loop should not get vectorized.
define void @accsum(ptr noundef %vals, i64 noundef %num) #0 {
; CHECK-LABEL: define void @accsum(
; CHECK-SAME: ptr nocapture noundef [[VALS:%.*]], i64 noundef [[NUM:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ugt i64 [[NUM]], 1
; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[LOAD_INITIAL:%.*]] = load i8, ptr [[VALS]], align 1
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[STORE_FORWARDED:%.*]] = phi i8 [ [[LOAD_INITIAL]], [[FOR_BODY_PREHEADER]] ], [ [[ADD_I:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[I_02:%.*]] = phi i64 [ 1, [[FOR_BODY_PREHEADER]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[VALS]], i64 [[I_02]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1, !alias.scope [[META0:![0-9]+]], !noalias [[META3:![0-9]+]]
; CHECK-NEXT: [[ADD_I]] = add i8 [[TMP0]], [[STORE_FORWARDED]]
; CHECK-NEXT: store i8 [[ADD_I]], ptr [[ARRAYIDX]], align 1, !alias.scope [[META0]], !noalias [[META3]]
; CHECK-NEXT: [[INC]] = add nuw i64 [[I_02]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[NUM]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%i.0 = phi i64 [ 1, %entry ], [ %inc, %for.inc ]
%cmp = icmp ult i64 %i.0, %num
br i1 %cmp, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond
br label %for.end
for.body: ; preds = %for.cond
%arrayidx = getelementptr inbounds i8, ptr %vals, i64 %i.0
%sub = sub i64 %i.0, 1
%arrayidx1 = getelementptr inbounds i8, ptr %vals, i64 %sub
call void @acc(ptr noundef %arrayidx, ptr noundef %arrayidx1)
br label %for.inc
for.inc: ; preds = %for.body
%inc = add i64 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond.cleanup
ret void
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1
attributes #0 = { "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87"}
;.
; CHECK: [[META0]] = !{[[META1:![0-9]+]]}
; CHECK: [[META1]] = distinct !{[[META1]], [[META2:![0-9]+]], !"acc: %val"}
; CHECK: [[META2]] = distinct !{[[META2]], !"acc"}
; CHECK: [[META3]] = !{[[META4:![0-9]+]]}
; CHECK: [[META4]] = distinct !{[[META4]], [[META2]], !"acc: %prev"}
;.
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