derek.holloway
7502bf64a4
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69 lines
2.5 KiB
LLVM
69 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=slp-vectorizer -S < %s | FileCheck %s
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; Given LLVM IR caused associative reduction matching routine crash in SLP.
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; The routines begins with select as integer Umax reduction kind
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; and then follows to llvm.umax intrinsic call which also matched
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; to UMax and thus same reduction kind is returned.
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; The routine's later code merely assumes the instruction to be a select.
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define dso_local void @test(i1 %arg) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 %arg, label [[NEXT:%.*]], label [[THEN:%.*]]
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; CHECK: then:
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; CHECK-NEXT: [[UM:%.*]] = call i8 @llvm.umax.i8(i8 0, i8 undef)
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; CHECK-NEXT: [[SELCMP:%.*]] = icmp ult i8 [[UM]], undef
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; CHECK-NEXT: [[I0:%.*]] = select i1 [[SELCMP]], i8 undef, i8 [[UM]]
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; CHECK-NEXT: br label [[NEXT]]
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; CHECK: next:
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; CHECK-NEXT: [[T7_0:%.*]] = phi i8 [ undef, [[ENTRY:%.*]] ], [ [[I0]], [[THEN]] ]
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %arg, label %next, label %then
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then:
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%um = call i8 @llvm.umax.i8(i8 0, i8 undef)
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%selcmp = icmp ult i8 %um, undef
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%i0 = select i1 %selcmp, i8 undef, i8 %um
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br label %next
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next:
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%t7.0 = phi i8 [ undef, %entry ], [ %i0, %then ]
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ret void
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}
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declare i8 @llvm.umax.i8(i8, i8)
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declare i32 @llvm.smin.i32(i32, i32)
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declare i32 @llvm.umin.i32(i32, i32)
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; Given LLVM IR caused crash in SLP.
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define void @test2() {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call <4 x i32> @llvm.smin.v4i32(<4 x i32> <i32 3, i32 2, i32 1, i32 undef>, <4 x i32> <i32 undef, i32 undef, i32 undef, i32 0>)
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; CHECK-NEXT: [[TMP1:%.*]] = sub nsw <4 x i32> undef, [[TMP0]]
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; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.vector.reduce.umin.v4i32(<4 x i32> [[TMP1]])
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; CHECK-NEXT: [[TMP3:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP2]], i32 77)
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; CHECK-NEXT: [[E:%.*]] = icmp ugt i32 [[TMP3]], 1
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; CHECK-NEXT: ret void
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;
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entry:
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%smin0 = call i32 @llvm.smin.i32(i32 undef, i32 0)
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%smin1 = call i32 @llvm.smin.i32(i32 undef, i32 1)
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%smin2 = call i32 @llvm.smin.i32(i32 undef, i32 2)
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%smin3 = call i32 @llvm.smin.i32(i32 undef, i32 3)
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%a = sub nsw i32 undef, %smin0
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%b = sub nsw i32 undef, %smin1
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%c = sub nsw i32 undef, %smin2
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%d = sub nsw i32 undef, %smin3
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%umin0 = call i32 @llvm.umin.i32(i32 %d, i32 %c)
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%umin1 = call i32 @llvm.umin.i32(i32 %umin0, i32 %b)
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%umin2 = call i32 @llvm.umin.i32(i32 %umin1, i32 %a)
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%umin3 = call i32 @llvm.umin.i32(i32 %umin2, i32 77)
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%e = icmp ugt i32 %umin3, 1
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ret void
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}
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