memcmp.ll
1.43 KB
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; RUN: llc -march=hexagon < %s | FileCheck %s
; CHECK: loop0
target triple = "hexagon"
; Function Attrs: nounwind readonly
define i32 @f0(i8* nocapture %a0, i8* nocapture %a1, i32 %a2) #0 {
b0:
%v0 = icmp eq i32 %a2, 0
br i1 %v0, label %b6, label %b1
b1: ; preds = %b0
br label %b2
b2: ; preds = %b4, %b1
%v1 = phi i8* [ %v10, %b4 ], [ %a1, %b1 ]
%v2 = phi i8* [ %v9, %b4 ], [ %a0, %b1 ]
%v3 = phi i32 [ %v11, %b4 ], [ %a2, %b1 ]
%v4 = load i8, i8* %v2, align 1, !tbaa !0
%v5 = load i8, i8* %v1, align 1, !tbaa !0
%v6 = icmp eq i8 %v4, %v5
br i1 %v6, label %b4, label %b3
b3: ; preds = %b2
%v7 = icmp ult i8 %v4, %v5
%v8 = select i1 %v7, i32 -1, i32 1
br label %b6
b4: ; preds = %b2
%v9 = getelementptr inbounds i8, i8* %v2, i32 1
%v10 = getelementptr inbounds i8, i8* %v1, i32 1
%v11 = add i32 %v3, -1
%v12 = icmp eq i32 %v11, 0
br i1 %v12, label %b5, label %b2
b5: ; preds = %b4
br label %b6
b6: ; preds = %b5, %b3, %b0
%v13 = phi i32 [ %v8, %b3 ], [ 0, %b0 ], [ 0, %b5 ]
ret i32 %v13
}
attributes #0 = { nounwind readonly "target-cpu"="hexagonv55" }
!0 = !{!1, !1, i64 0}
!1 = !{!"omnipotent char", !2}
!2 = !{!"Simple C/C++ TBAA"}