ec8311444a
This patch is for fixing potential shufflevector-related bugs like D93818. As D93818, this patch change shufflevector's default placeholder to poison. To reduce risk, it was divided into several patches, and this patch is for InstCombineCompares and InstructionCombining. Reviewed By: spatel Differential Revision: https://reviews.llvm.org/D110227
36 lines
1.6 KiB
LLVM
36 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define <vscale x 2 x i1> @sge(<vscale x 2 x i8> %x) {
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; CHECK-LABEL: @sge(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge <vscale x 2 x i8> [[X:%.*]], zeroinitializer
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; CHECK-NEXT: ret <vscale x 2 x i1> [[CMP]]
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;
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%cmp = icmp sge <vscale x 2 x i8> %x, zeroinitializer
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ret <vscale x 2 x i1> %cmp
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}
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define <vscale x 2 x i1> @gep_scalevector1(i32* %X) nounwind {
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; CHECK-LABEL: @gep_scalevector1(
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; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 2 x i32*> poison, i32* [[X:%.*]], i32 0
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq <vscale x 2 x i32*> [[DOTSPLATINSERT]], zeroinitializer
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; CHECK-NEXT: [[C:%.*]] = shufflevector <vscale x 2 x i1> [[TMP1]], <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer
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; CHECK-NEXT: ret <vscale x 2 x i1> [[C]]
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;
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%A = getelementptr inbounds i32, i32* %X, <vscale x 2 x i64> zeroinitializer
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%C = icmp eq <vscale x 2 x i32*> %A, zeroinitializer
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ret <vscale x 2 x i1> %C
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}
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define <vscale x 2 x i1> @signbit_bitcast_fpext_scalevec(<vscale x 2 x half> %x) {
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; CHECK-LABEL: @signbit_bitcast_fpext_scalevec(
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast <vscale x 2 x half> [[X:%.*]] to <vscale x 2 x i16>
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; CHECK-NEXT: [[R:%.*]] = icmp slt <vscale x 2 x i16> [[TMP1]], zeroinitializer
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; CHECK-NEXT: ret <vscale x 2 x i1> [[R]]
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;
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%f = fpext <vscale x 2 x half> %x to <vscale x 2 x float>
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%b = bitcast <vscale x 2 x float> %f to <vscale x 2 x i32>
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%r = icmp slt <vscale x 2 x i32> %b, zeroinitializer
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ret <vscale x 2 x i1> %r
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}
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