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