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Previously, PromoteIntRes_TRUNCATE() did not handle the case where the operand needs widening, which resulted in llvm_unreachable(). This patch adds the needed handling, along with a test case. Review: Eli Friedman, Simon Pilgrim. https://reviews.llvm.org/D31077 llvm-svn: 298357
38 lines
1.0 KiB
LLVM
38 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;
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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: vrepif %v0, 1
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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: vlgvb %r0, %v24, 3
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; CHECK-NEXT: vlgvb %r1, %v24, 1
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; CHECK-NEXT: vlvgp %v1, %r1, %r0
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; CHECK-NEXT: vlgvb %r0, %v24, 0
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; CHECK-NEXT: vlvgf %v1, %r0, 0
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; CHECK-NEXT: vlgvb %r0, %v24, 2
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; CHECK-NEXT: vlvgf %v1, %r0, 2
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; CHECK-NEXT: vn %v1, %v1, %v0
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; CHECK-NEXT: vlgvf %r0, %v1, 3
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; CHECK-NEXT: tmll %r0, 1
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; CHECK-NEXT: jne .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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