45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; RUN: llc -march=hexagon -disable-machine-licm -hwloop-spec-preheader=1 < %s | FileCheck %s
|
|
; CHECK: loop0
|
|
|
|
target triple = "hexagon"
|
|
|
|
define i32 @foo(i32 %x, i32 %n, i32* nocapture %A, i32* nocapture %B) #0 {
|
|
entry:
|
|
%cmp = icmp sgt i32 %x, 0
|
|
br i1 %cmp, label %for.cond.preheader, label %return
|
|
|
|
for.cond.preheader: ; preds = %entry
|
|
%cmp16 = icmp sgt i32 %n, 0
|
|
br i1 %cmp16, label %for.body.preheader, label %return
|
|
|
|
for.body.preheader: ; preds = %for.cond.preheader
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%arrayidx.phi = phi i32* [ %arrayidx.inc, %for.body ], [ %B, %for.body.preheader ]
|
|
%arrayidx2.phi = phi i32* [ %arrayidx2.inc, %for.body ], [ %A, %for.body.preheader ]
|
|
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
|
|
%0 = load i32, i32* %arrayidx.phi, align 4, !tbaa !0
|
|
%1 = load i32, i32* %arrayidx2.phi, align 4, !tbaa !0
|
|
%add = add nsw i32 %1, %0
|
|
store i32 %add, i32* %arrayidx2.phi, align 4, !tbaa !0
|
|
%inc = add nsw i32 %i.07, 1
|
|
%exitcond = icmp eq i32 %inc, %n
|
|
%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
|
|
%arrayidx2.inc = getelementptr i32, i32* %arrayidx2.phi, i32 1
|
|
br i1 %exitcond, label %return.loopexit, label %for.body
|
|
|
|
return.loopexit: ; preds = %for.body
|
|
br label %return
|
|
|
|
return: ; preds = %return.loopexit, %for.cond.preheader, %entry
|
|
%retval.0 = phi i32 [ 2, %entry ], [ 0, %for.cond.preheader ], [ 0, %return.loopexit ]
|
|
ret i32 %retval.0
|
|
}
|
|
|
|
!0 = !{!"int", !1}
|
|
!1 = !{!"omnipotent char", !2}
|
|
!2 = !{!"Simple C/C++ TBAA"}
|
|
|
|
attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="-hvx,-hvx-double" }
|