2018-08-03 06:17:53 +08:00
|
|
|
; RUN: llc -march=hexagon -enable-pipeliner -hexagon-initial-cfg-cleanup=0 -stats -o /dev/null < %s 2>&1 | FileCheck %s --check-prefix=STATS
|
2018-03-12 22:01:28 +08:00
|
|
|
; REQUIRES: asserts
|
|
|
|
|
|
|
|
|
|
; Check that we handle the case when a value is first defined in the loop.
|
|
|
|
|
|
|
|
|
|
; STATS: 1 pipeliner - Number of loops software pipelined
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind
|
|
|
|
|
define fastcc void @f0() #0 {
|
|
|
|
|
b0:
|
|
|
|
|
br i1 undef, label %b7, label %b1
|
|
|
|
|
|
|
|
|
|
b1: ; preds = %b0
|
|
|
|
|
br i1 undef, label %b2, label %b4
|
|
|
|
|
|
|
|
|
|
b2: ; preds = %b1
|
|
|
|
|
%v0 = load i16, i16* undef, align 2
|
|
|
|
|
%v1 = load i16, i16* undef, align 2
|
|
|
|
|
br i1 undef, label %b5, label %b3
|
|
|
|
|
|
|
|
|
|
b3: ; preds = %b5, %b2
|
|
|
|
|
%v2 = phi i16 [ 0, %b2 ], [ %v14, %b5 ]
|
|
|
|
|
br label %b4
|
|
|
|
|
|
|
|
|
|
b4: ; preds = %b3, %b1
|
|
|
|
|
br i1 undef, label %b7, label %b6
|
|
|
|
|
|
|
|
|
|
b5: ; preds = %b5, %b2
|
|
|
|
|
%v3 = phi i16 [ %v5, %b5 ], [ undef, %b2 ]
|
|
|
|
|
%v4 = phi i16 [ 0, %b5 ], [ %v1, %b2 ]
|
|
|
|
|
%v5 = phi i16 [ 0, %b5 ], [ %v0, %b2 ]
|
|
|
|
|
%v6 = phi i16 [ %v4, %b5 ], [ undef, %b2 ]
|
|
|
|
|
%v7 = phi i16 [ %v14, %b5 ], [ 0, %b2 ]
|
|
|
|
|
%v8 = phi i32 [ %v15, %b5 ], [ undef, %b2 ]
|
|
|
|
|
%v9 = or i16 0, %v7
|
|
|
|
|
%v10 = lshr i16 %v3, 8
|
|
|
|
|
%v11 = lshr i16 %v6, 8
|
|
|
|
|
%v12 = or i16 %v11, %v9
|
|
|
|
|
%v13 = or i16 0, %v12
|
|
|
|
|
%v14 = or i16 %v10, %v13
|
|
|
|
|
%v15 = add nsw i32 %v8, -32
|
|
|
|
|
%v16 = icmp sgt i32 %v15, 31
|
|
|
|
|
br i1 %v16, label %b5, label %b3
|
|
|
|
|
|
|
|
|
|
b6: ; preds = %b4
|
|
|
|
|
br label %b7
|
|
|
|
|
|
|
|
|
|
b7: ; preds = %b6, %b4, %b0
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
attributes #0 = { nounwind "target-cpu"="hexagonv55" }
|
