Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/Hexagon/tail-dup-subreg-map.ll

@@ -1,67 +0,0 @@
-; RUN: llc -march=hexagon < %s | FileCheck %s
-; REQUIRES: asserts
-
-; When tail-duplicating a block with PHI nodes that use subregisters, the
-; subregisters were dropped by the tail duplicator, resulting in invalid
-; COPY instructions being generated.
-
-; CHECK: = extractu(r{{[0-9]+}},#15,#17)
-
-target triple = "hexagon"
-
-%struct.0 = type { i64, i16 }
-%struct.1 = type { i64, i64 }
-
-declare hidden fastcc void @foo(%struct.0* noalias nocapture, i8 signext, i8 zeroext, i32, i64, i64) unnamed_addr #0
-
-define void @fred(%struct.0* noalias nocapture sret %agg.result, %struct.1* byval nocapture readonly align 8 %a) #1 {
-entry:
-  %0 = load i64, i64* undef, align 8
-  switch i32 undef, label %if.else [
-    i32 32767, label %if.then
-    i32 0, label %if.then7
-  ]
-
-if.then:                                          ; preds = %entry
-  ret void
-
-if.then7:                                         ; preds = %entry
-  br i1 undef, label %if.then.i, label %if.else16.i
-
-if.then.i:                                        ; preds = %if.then7
-  br i1 undef, label %if.then5.i, label %if.else.i
-
-if.then5.i:                                       ; preds = %if.then.i
-  %shl.i21 = shl i64 %0, 0
-  br label %if.end.i
-
-if.else.i:                                        ; preds = %if.then.i
-  %shl12.i = shl i64 %0, undef
-  br label %if.end.i
-
-if.end.i:                                         ; preds = %if.else.i, %if.then5.i
-  %aSig0.0 = phi i64 [ undef, %if.then5.i ], [ %shl12.i, %if.else.i ]
-  %storemerge43.i = phi i64 [ %shl.i21, %if.then5.i ], [ 0, %if.else.i ]
-  %sub15.i = sub nsw i32 -63, undef
-  br label %if.end13
-
-if.else16.i:                                      ; preds = %if.then7
-  br label %if.end13
-
-if.else:                                          ; preds = %entry
-  %or12 = or i64 undef, 281474976710656
-  br label %if.end13
-
-if.end13:                                         ; preds = %if.else, %if.else16.i, %if.end.i
-  %aSig1.1 = phi i64 [ %0, %if.else ], [ %storemerge43.i, %if.end.i ], [ undef, %if.else16.i ]
-  %aSig0.2 = phi i64 [ %or12, %if.else ], [ %aSig0.0, %if.end.i ], [ undef, %if.else16.i ]
-  %aExp.0 = phi i32 [ undef, %if.else ], [ %sub15.i, %if.end.i ], [ undef, %if.else16.i ]
-  %shl2.i = shl i64 %aSig0.2, 15
-  %shr.i = lshr i64 %aSig1.1, 49
-  %or.i = or i64 %shl2.i, %shr.i
-  tail call fastcc void @foo(%struct.0* noalias %agg.result, i8 signext 80, i8 zeroext undef, i32 %aExp.0, i64 %or.i, i64 undef)
-  unreachable
-}
-
-attributes #0 = { norecurse nounwind }
-attributes #1 = { nounwind }