forked from OSchip/llvm-project
71 lines
2.1 KiB
LLVM
71 lines
2.1 KiB
LLVM
; RUN: llc -march=hexagon -enable-pipeliner -enable-pipeliner-opt-size \
|
|
; RUN: -verify-machineinstrs \
|
|
; RUN: -enable-aa-sched-mi=false -hexagon-expand-condsets=0 \
|
|
; RUN: < %s | FileCheck %s
|
|
|
|
; Disable expand-condsets because it will assert on undefined registers.
|
|
|
|
; Test that we change the CFG correctly for pipelined loops where the trip
|
|
; count is a compile-time constant, and the trip count is the same as the
|
|
; number of prolog blocks (i.e., stages).
|
|
|
|
; CHECK: memb(r{{[0-9]+}}+#0) =
|
|
; CHECK: memb(r{{[0-9]+}}+#0) =
|
|
|
|
; Function Attrs: nounwind optsize
|
|
define void @f0() #0 {
|
|
b0:
|
|
br label %b1
|
|
|
|
b1: ; preds = %b5, %b0
|
|
%v0 = load i16, i16* undef, align 2, !tbaa !0
|
|
%v1 = sext i16 %v0 to i32
|
|
%v2 = load i16, i16* undef, align 2, !tbaa !0
|
|
%v3 = sext i16 %v2 to i32
|
|
%v4 = and i32 %v1, 7
|
|
%v5 = and i32 %v3, 7
|
|
br label %b2
|
|
|
|
b2: ; preds = %b4, %b1
|
|
br label %b3
|
|
|
|
b3: ; preds = %b3, %b2
|
|
%v6 = phi i32 [ 0, %b2 ], [ %v22, %b3 ]
|
|
%v7 = add i32 %v6, undef
|
|
%v8 = icmp slt i32 undef, %v7
|
|
%v9 = add nsw i32 %v7, 1
|
|
%v10 = select i1 undef, i32 undef, i32 %v9
|
|
%v11 = add i32 %v10, 0
|
|
%v12 = getelementptr inbounds i8, i8* null, i32 %v11
|
|
%v13 = load i8, i8* %v12, align 1, !tbaa !4
|
|
%v14 = zext i8 %v13 to i32
|
|
%v15 = mul i32 %v14, %v4
|
|
%v16 = add i32 %v15, 0
|
|
%v17 = mul i32 %v16, %v5
|
|
%v18 = add i32 %v17, 32
|
|
%v19 = add i32 %v18, 0
|
|
%v20 = lshr i32 %v19, 6
|
|
%v21 = trunc i32 %v20 to i8
|
|
store i8 %v21, i8* undef, align 1, !tbaa !4
|
|
%v22 = add i32 %v6, 1
|
|
%v23 = icmp eq i32 %v22, 2
|
|
br i1 %v23, label %b4, label %b3
|
|
|
|
b4: ; preds = %b3
|
|
br i1 undef, label %b5, label %b2
|
|
|
|
b5: ; preds = %b4
|
|
br i1 undef, label %b1, label %b6
|
|
|
|
b6: ; preds = %b5
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind optsize "target-cpu"="hexagonv55" }
|
|
|
|
!0 = !{!1, !1, i64 0}
|
|
!1 = !{!"short", !2}
|
|
!2 = !{!"omnipotent char", !3}
|
|
!3 = !{!"Simple C/C++ TBAA"}
|
|
!4 = !{!2, !2, i64 0}
|