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a87f26a872
as the BinaryOperator, *not* in the block where the IRBuilder is currently inserting into. Fixes a bug where scalarizePHI would create instructions that would not dominate all uses. llvm-svn: 182639
53 lines
1.6 KiB
LLVM
53 lines
1.6 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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define void @f(i64 %val, i32 %limit, i32 *%ptr) {
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;CHECK: %0 = trunc i64
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;CHECK: %1 = phi i32
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entry:
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%tempvector = insertelement <16 x i64> undef, i64 %val, i32 0
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%vector = shufflevector <16 x i64> %tempvector, <16 x i64> undef, <16 x i32> zeroinitializer
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%0 = add <16 x i64> %vector, <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>
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%1 = trunc <16 x i64> %0 to <16 x i32>
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br label %loop
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loop:
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%2 = phi <16 x i32> [ %1, %entry ], [ %inc, %loop ]
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%elt = extractelement <16 x i32> %2, i32 0
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%end = icmp ult i32 %elt, %limit
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%3 = add i32 10, %elt
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%4 = sext i32 %elt to i64
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%5 = getelementptr i32* %ptr, i64 %4
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store i32 %3, i32* %5
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%inc = add <16 x i32> %2, <i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16>
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br i1 %end, label %loop, label %ret
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ret:
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ret void
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}
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define i1 @g(<3 x i32> %input_2) {
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; CHECK: extractelement
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entry:
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br label %for.cond
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for.cond:
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; CHECK: phi i32
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%input_2.addr.0 = phi <3 x i32> [ %input_2, %entry ], [ %div45, %for.body ]
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%input_1.addr.1 = phi <3 x i32> [ undef, %entry ], [ %dec43, %for.body ]
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br i1 undef, label %for.end, label %for.body
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; CHECK extractelement
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for.body:
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%dec43 = add <3 x i32> %input_1.addr.1, <i32 -1, i32 -1, i32 -1>
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%sub44 = sub <3 x i32> zeroinitializer, %dec43
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%div45 = sdiv <3 x i32> %input_2.addr.0, %sub44
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br label %for.cond
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for.end:
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%0 = extractelement <3 x i32> %input_2.addr.0, i32 0
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%.89 = select i1 false, i32 0, i32 %0
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%tobool313 = icmp eq i32 %.89, 0
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ret i1 %tobool313
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}
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