77 lines
2.2 KiB
LLVM
77 lines
2.2 KiB
LLVM
|
; RUN: llc -march=hexagon -machine-sink-split < %s
|
||
|
|
; REQUIRES: asserts
|
||
|
|
; MachineSink should not sink an MI which is used in a non-phi instruction
|
||
|
|
; in an MBB with multiple predecessors.
|
||
|
|
|
||
|
|
target triple = "hexagon-unknown--elf"
|
||
|
|
|
||
|
|
; Function Attrs: nounwind
|
||
|
|
define void @f0() #0 {
|
||
|
|
b0:
|
||
|
|
br i1 undef, label %b1, label %b2
|
||
|
|
|
||
|
|
b1: ; preds = %b0
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
b2: ; preds = %b0
|
||
|
|
%v0 = load i8*, i8** undef, align 4
|
||
|
|
%v1 = getelementptr inbounds i8, i8* %v0, i32 1
|
||
|
|
%v2 = load i8, i8* %v0, align 1, !tbaa !0
|
||
|
|
%v3 = zext i8 %v2 to i32
|
||
|
|
%v4 = shl nuw nsw i32 %v3, 8
|
||
|
|
br i1 undef, label %b3, label %b5
|
||
|
|
|
||
|
|
b3: ; preds = %b2
|
||
|
|
br i1 undef, label %b15, label %b4
|
||
|
|
|
||
|
|
b4: ; preds = %b3
|
||
|
|
br label %b5
|
||
|
|
|
||
|
|
b5: ; preds = %b4, %b2
|
||
|
|
%v5 = phi i8* [ undef, %b4 ], [ %v1, %b2 ]
|
||
|
|
%v6 = load i8, i8* %v5, align 1, !tbaa !0
|
||
|
|
%v7 = zext i8 %v6 to i32
|
||
|
|
%v8 = add nsw i32 %v7, %v4
|
||
|
|
%v9 = add nsw i32 %v8, -2
|
||
|
|
br label %b6
|
||
|
|
|
||
|
|
b6: ; preds = %b8, %b5
|
||
|
|
br i1 false, label %b7, label %b8
|
||
|
|
|
||
|
|
b7: ; preds = %b6
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
b8: ; preds = %b6
|
||
|
|
br i1 undef, label %b6, label %b9
|
||
|
|
|
||
|
|
b9: ; preds = %b8
|
||
|
|
br i1 undef, label %b10, label %b14
|
||
|
|
|
||
|
|
b10: ; preds = %b9
|
||
|
|
br i1 undef, label %b11, label %b13
|
||
|
|
|
||
|
|
b11: ; preds = %b10
|
||
|
|
br i1 undef, label %b12, label %b13
|
||
|
|
|
||
|
|
b12: ; preds = %b11
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
b13: ; preds = %b11, %b10
|
||
|
|
store i32 %v9, i32* undef, align 4, !tbaa !3
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
b14: ; preds = %b9
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
b15: ; preds = %b3
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { nounwind }
|
||
|
|
|
||
|
|
!0 = !{!1, !1, i64 0}
|
||
|
|
!1 = !{!"omnipotent char", !2, i64 0}
|
||
|
|
!2 = !{!"Simple C/C++ TBAA"}
|
||
|
|
!3 = !{!4, !4, i64 0}
|
||
|
|
!4 = !{!"int", !1, i64 0}
|