cb5046da26
Need to consider undefs correctly, when trying to replace them with potentially poisonous values in shuffles. Such elements should not be silently replaced by poison values, instead complex analysis should be implemented to see if it is safe to do it. Fixes #113425
43 lines
2.2 KiB
LLVM
43 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -mtriple=riscv64 -mcpu=sifive-x280 -passes=slp-vectorizer -S -slp-revec -slp-max-reg-size=1024 -slp-threshold=-100 %s | FileCheck %s
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define i32 @test() {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[IF_END_I87:%.*]]
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; CHECK: if.end.i87:
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; CHECK-NEXT: [[TMP0:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> getelementptr (i32, <4 x ptr> <ptr inttoptr (i64 64036 to ptr), ptr inttoptr (i64 64036 to ptr), ptr inttoptr (i64 64064 to ptr), ptr inttoptr (i64 64064 to ptr)>, <4 x i64> <i64 0, i64 1, i64 0, i64 1>), i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> poison)
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; CHECK-NEXT: [[TMP2:%.*]] = call <4 x i32> @llvm.vector.insert.v4i32.v2i32(<4 x i32> poison, <2 x i32> zeroinitializer, i64 2)
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; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <4 x i32> [[TMP0]], <4 x i32> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 6, i32 7>
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; CHECK-NEXT: switch i32 0, label [[SW_BB509_I:%.*]] [
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; CHECK-NEXT: i32 1, label [[SW_BB509_I]]
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; CHECK-NEXT: i32 0, label [[IF_THEN458_I:%.*]]
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; CHECK-NEXT: ]
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; CHECK: if.then458.i:
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; CHECK-NEXT: br label [[SW_BB509_I]]
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; CHECK: sw.bb509.i:
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; CHECK-NEXT: [[TMP4:%.*]] = phi <4 x i32> [ [[TMP0]], [[IF_THEN458_I]] ], [ [[TMP3]], [[IF_END_I87]] ], [ [[TMP3]], [[IF_END_I87]] ]
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%getelementptr0 = getelementptr i8, ptr null, i64 64036
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%getelementptr1 = getelementptr i8, ptr null, i64 64064
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br label %if.end.i87
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if.end.i87: ; preds = %entry
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%0 = load <2 x i32>, ptr %getelementptr0, align 4
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%1 = load <2 x i32>, ptr %getelementptr1, align 8
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switch i32 0, label %sw.bb509.i [
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i32 1, label %sw.bb509.i
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i32 0, label %if.then458.i
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]
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if.then458.i: ; preds = %if.end.i87
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br label %sw.bb509.i
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sw.bb509.i: ; preds = %if.then458.i, %if.end.i87, %if.end.i87
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%4 = phi <2 x i32> [ %0, %if.then458.i ], [ %0, %if.end.i87 ], [ %0, %if.end.i87 ]
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%5 = phi <2 x i32> [ %1, %if.then458.i ], [ zeroinitializer, %if.end.i87 ], [ zeroinitializer, %if.end.i87 ]
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ret i32 0
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}
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