; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mattr=+avx512f | FileCheck %s ; RUN: llc < %s -mattr=+avx512f -mattr=+avx512vl -mattr=+avx512bw -mattr=+avx512dq | FileCheck %s target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" define void @func() { ; CHECK-LABEL: func: ; CHECK: # %bb.0: # %bb1 ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je .LBB0_1 ; CHECK-NEXT: # %bb.4: # %L_30 ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB0_1: # %bb56 ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_2: # %bb33 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: jne .LBB0_2 ; CHECK-NEXT: # %bb.3: # %bb35 ; CHECK-NEXT: # in Loop: Header=BB0_2 Depth=1 ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: jmp .LBB0_2 bb1: br i1 undef, label %L_10, label %L_10 L_10: ; preds = %bb1, %bb1 br i1 undef, label %L_30, label %bb56 bb56: ; preds = %L_10 br label %bb33 bb33: ; preds = %bb51, %bb56 %r111 = load i64, ptr undef, align 8 br i1 undef, label %bb51, label %bb35 bb35: ; preds = %bb33 br i1 undef, label %L_19, label %bb37 bb37: ; preds = %bb35 %r128 = and i64 %r111, 576460752303423488 %phitmp = icmp eq i64 %r128, 0 br label %L_19 L_19: ; preds = %bb37, %bb35 %"$V_S25.0" = phi i1 [ %phitmp, %bb37 ], [ true, %bb35 ] br i1 undef, label %bb51, label %bb42 bb42: ; preds = %L_19 %r136 = select i1 %"$V_S25.0", ptr undef, ptr undef br label %bb51 bb51: ; preds = %bb42, %L_19, %bb33 br i1 false, label %L_30, label %bb33 L_30: ; preds = %bb51, %L_10 ret void } ; The following test generates suboptimal code on AVX-512 ; PR 28175 define i64 @func2(i1 zeroext %i, i32 %j) { ; CHECK-LABEL: func2: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: je .LBB1_1 ; CHECK-NEXT: # %bb.2: # %if.then ; CHECK-NEXT: jmp bar # TAILCALL ; CHECK-NEXT: .LBB1_1: # %if.end ; CHECK-NEXT: movzbl %dil, %eax ; CHECK-NEXT: orq $-2, %rax ; CHECK-NEXT: retq entry: %tobool = icmp eq i32 %j, 0 br i1 %tobool, label %if.end, label %if.then if.then: ; preds = %entry %call = tail call i64 @bar() br label %return if.end: ; preds = %entry %conv = zext i1 %i to i64 %or = or i64 %conv, -2 br label %return return: ; preds = %if.end, %if.then %or.sink = phi i64 [ %or, %if.end ], [ %call, %if.then ] ret i64 %or.sink } declare dso_local i64 @bar()