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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=instcombine -S < %s | FileCheck %s3 4; This test checks a regression in the select operand folding combine, in which5; Constant::getUniqueInteger would crash for a scalable-vector zeroinitializer.6define <vscale x 1 x i32> @select_opt(<vscale x 1 x i32> %b, <vscale x 1 x i1> %m) {7; CHECK-LABEL: @select_opt(8; CHECK-NEXT: [[C:%.*]] = add nsw <vscale x 1 x i32> [[B:%.*]], splat (i32 2)9; CHECK-NEXT: [[D:%.*]] = select <vscale x 1 x i1> [[M:%.*]], <vscale x 1 x i32> [[C]], <vscale x 1 x i32> [[B]]10; CHECK-NEXT: ret <vscale x 1 x i32> [[D]]11;12 %c = add nsw <vscale x 1 x i32> %b, splat (i32 2)13 %d = select <vscale x 1 x i1> %m, <vscale x 1 x i32> %c, <vscale x 1 x i32> %b14 ret <vscale x 1 x i32> %d15}16 17define <vscale x 2 x i64> @load_scalable_of_selected_ptrs(ptr %p0, ptr %p1, i64 %idx) {18; CHECK-LABEL: @load_scalable_of_selected_ptrs(19; CHECK-NEXT: entry:20; CHECK-NEXT: [[ARRAYIDX0:%.*]] = getelementptr inbounds i32, ptr [[P0:%.*]], i64 [[IDX:%.*]]21; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, ptr [[P1:%.*]], i64 [[IDX]]22; CHECK-NEXT: [[L0:%.*]] = load i32, ptr [[ARRAYIDX0]], align 423; CHECK-NEXT: [[L1:%.*]] = load i32, ptr [[ARRAYIDX1]], align 424; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[L0]], [[L1]]25; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], ptr [[ARRAYIDX0]], ptr [[ARRAYIDX1]]26; CHECK-NEXT: [[RET:%.*]] = load <vscale x 2 x i64>, ptr [[SEL]], align 1627; CHECK-NEXT: ret <vscale x 2 x i64> [[RET]]28;29entry:30 ; Test introduced in response to a TypeSize warning arising from isSafeToLoadUnconditionally via instcombine.31 ; deref (p0[0] < p1[0] ? p0 : p1) as <vscale x 2 x i64>.32 %arrayidx0 = getelementptr inbounds i32, ptr %p0, i64 %idx33 %arrayidx1 = getelementptr inbounds i32, ptr %p1, i64 %idx34 %l0 = load i32, ptr %arrayidx035 %l1 = load i32, ptr %arrayidx136 %cmp = icmp slt i32 %l0, %l137 %sel = select i1 %cmp, ptr %arrayidx0, ptr %arrayidx138 %ret = load <vscale x 2 x i64>, ptr %sel39 ret <vscale x 2 x i64> %ret40}41