You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
1.5 KiB
37 lines
1.5 KiB
; Check for recognizing the "memmove" idiom.
|
|
; RUN: opt -basic-aa -hexagon-loop-idiom -S -mtriple hexagon-unknown-elf < %s \
|
|
; RUN: | FileCheck %s
|
|
; CHECK: call void @llvm.memmove
|
|
|
|
; Function Attrs: norecurse nounwind
|
|
define void @foo(i32* nocapture %A, i32* nocapture readonly %B, i32 %n) #0 {
|
|
entry:
|
|
%cmp1 = icmp sgt i32 %n, 0
|
|
br i1 %cmp1, label %for.body.preheader, label %for.end
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
%arrayidx.gep = getelementptr i32, i32* %B, i32 0
|
|
%arrayidx1.gep = getelementptr i32, i32* %A, i32 0
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%arrayidx.phi = phi i32* [ %arrayidx.gep, %for.body.preheader ], [ %arrayidx.inc, %for.body ]
|
|
%arrayidx1.phi = phi i32* [ %arrayidx1.gep, %for.body.preheader ], [ %arrayidx1.inc, %for.body ]
|
|
%i.02 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
|
|
%0 = load i32, i32* %arrayidx.phi, align 4
|
|
store i32 %0, i32* %arrayidx1.phi, align 4
|
|
%inc = add nuw nsw i32 %i.02, 1
|
|
%exitcond = icmp ne i32 %inc, %n
|
|
%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
|
|
%arrayidx1.inc = getelementptr i32, i32* %arrayidx1.phi, i32 1
|
|
br i1 %exitcond, label %for.body, label %for.end.loopexit
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|