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6830a5ab1e
If either of the operand elements are zero then we know the result element is going to be zero (even if the other element is undef). Differential Revision: https://reviews.llvm.org/D55558 llvm-svn: 348926
30 lines
844 B
LLVM
30 lines
844 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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;
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; Check that a widening truncate to a vector of i1 elements can be handled.
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define void @pr32275(<4 x i8> %B15) {
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; CHECK-LABEL: pr32275:
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; CHECK: # %bb.0: # %BB
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; CHECK-NEXT: vlgvb %r0, %v24, 3
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; CHECK-NEXT: vlvgp %v0, %r0, %r0
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; CHECK-NEXT: vrepif %v1, 1
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; CHECK-NEXT: vn %v0, %v0, %v1
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; CHECK-NEXT: vlgvf %r0, %v0, 3
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; CHECK-NEXT: .LBB0_1: # %CF34
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: cijlh %r0, 0, .LBB0_1
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; CHECK-NEXT: # %bb.2: # %CF36
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; CHECK-NEXT: br %r14
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BB:
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br label %CF34
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CF34:
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%Tr24 = trunc <4 x i8> %B15 to <4 x i1>
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%E28 = extractelement <4 x i1> %Tr24, i32 3
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br i1 %E28, label %CF34, label %CF36
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CF36:
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ret void
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}
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