1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: %if x86-registered-target %{ opt -S --passes=slp-vectorizer -mtriple=x86_64-unknown %s -slp-threshold=-5 | FileCheck %s %} 3; RUN: %if aarch64-registered-target %{ opt -S --passes=slp-vectorizer -mtriple=aarch64-unknown %s -slp-threshold=-5 | FileCheck %s %} 4 5define i32 @test(ptr %isec) { 6; CHECK-LABEL: @test( 7; CHECK-NEXT: entry: 8; CHECK-NEXT: [[TMP1:%.*]] = load <2 x i32>, ptr [[ISEC:%.*]], align 8 9; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> <i32 1, i32 0> 10; CHECK-NEXT: br i1 false, label [[BLOCK1:%.*]], label [[BLOCK3:%.*]] 11; CHECK: block1: 12; CHECK-NEXT: br i1 false, label [[BLOCK2:%.*]], label [[BLOCK3]] 13; CHECK: block2: 14; CHECK-NEXT: br label [[BLOCK3]] 15; CHECK: block3: 16; CHECK-NEXT: [[TMP3:%.*]] = phi <2 x i32> [ [[TMP1]], [[BLOCK1]] ], [ [[TMP1]], [[BLOCK2]] ], [ [[TMP2]], [[ENTRY:%.*]] ] 17; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i32> [[TMP3]], i32 0 18; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i32> [[TMP3]], i32 1 19; CHECK-NEXT: [[TMP6:%.*]] = mul i32 [[TMP5]], [[TMP4]] 20; CHECK-NEXT: ret i32 [[TMP6]] 21; 22entry: 23 %0 = load <2 x i32>, ptr %isec, align 8 24 %1 = extractelement <2 x i32> %0, i32 1 25 %2 = extractelement <2 x i32> %0, i32 0 26 br i1 false, label %block1, label %block3 27block1: 28 br i1 false, label %block2, label %block3 29block2: 30 br label %block3 31block3: 32 %3 = phi i32 [ %1, %block1 ], [ %1, %block2 ], [ %2, %entry ] 33 %4 = phi i32 [ %2, %block1 ], [ %2, %block2 ], [ %1, %entry ] 34 %5 = mul i32 %3, %4 35 ret i32 %5 36} 37