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96 lines
3.1 KiB
LLVM
96 lines
3.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mattr=+avx512f | FileCheck %s --check-prefix=CHECK --check-prefix=KNL
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; RUN: llc < %s -mattr=+avx512f -mattr=+avx512vl -mattr=+avx512bw -mattr=+avx512dq | FileCheck %s --check-prefix=CHECK --check-prefix=SKX
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @func() {
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; CHECK-LABEL: func:
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; CHECK: # %bb.0: # %L_10
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: je .LBB0_1
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; CHECK-NEXT: # %bb.4: # %L_30
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB0_1: # %bb56
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: jmp .LBB0_2
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; CHECK-NEXT: .p2align 4, 0x90
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; CHECK-NEXT: .LBB0_3: # %bb35
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; CHECK-NEXT: # in Loop: Header=BB0_2 Depth=1
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: .LBB0_2: # %bb33
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: jne .LBB0_2
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; CHECK-NEXT: jmp .LBB0_3
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bb1:
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br i1 undef, label %L_10, label %L_10
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L_10: ; preds = %bb1, %bb1
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br i1 undef, label %L_30, label %bb56
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bb56: ; preds = %L_10
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br label %bb33
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bb33: ; preds = %bb51, %bb56
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%r111 = load i64, i64* undef, align 8
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br i1 undef, label %bb51, label %bb35
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bb35: ; preds = %bb33
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br i1 undef, label %L_19, label %bb37
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bb37: ; preds = %bb35
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%r128 = and i64 %r111, 576460752303423488
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%phitmp = icmp eq i64 %r128, 0
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br label %L_19
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L_19: ; preds = %bb37, %bb35
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%"$V_S25.0" = phi i1 [ %phitmp, %bb37 ], [ true, %bb35 ]
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br i1 undef, label %bb51, label %bb42
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bb42: ; preds = %L_19
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%r136 = select i1 %"$V_S25.0", i32* undef, i32* undef
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br label %bb51
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bb51: ; preds = %bb42, %L_19, %bb33
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br i1 false, label %L_30, label %bb33
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L_30: ; preds = %bb51, %L_10
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ret void
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}
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; The following test generates suboptimal code on AVX-512
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; PR 28175
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define i64 @func2(i1 zeroext %i, i32 %j) {
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; CHECK-LABEL: func2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testl %esi, %esi
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; CHECK-NEXT: je .LBB1_1
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; CHECK-NEXT: # %bb.2: # %if.then
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; CHECK-NEXT: jmp bar # TAILCALL
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; CHECK-NEXT: .LBB1_1: # %return
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; CHECK-NEXT: movzbl %dil, %eax
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; CHECK-NEXT: orq $-2, %rax
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; CHECK-NEXT: retq
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entry:
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%tobool = icmp eq i32 %j, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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%call = tail call i64 @bar()
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br label %return
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if.end: ; preds = %entry
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%conv = zext i1 %i to i64
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%or = or i64 %conv, -2
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br label %return
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return: ; preds = %if.end, %if.then
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%or.sink = phi i64 [ %or, %if.end ], [ %call, %if.then ]
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ret i64 %or.sink
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}
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declare i64 @bar()
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