; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-pc-linux -mattr=+bmi,+bmi2,+popcnt,+lzcnt | FileCheck %s
declare dso_local void @foo(i32)
declare dso_local void @foo32(i32)
declare dso_local void @foo64(i64)
define void @neg(i32 %x) nounwind {
; CHECK-LABEL: neg:
; CHECK: # %bb.0:
; CHECK-NEXT: negl %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%sub = sub i32 0, %x
%cmp = icmp eq i32 %sub, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %sub)
br label %return
return:
ret void
}
define void @sar(i32 %x) nounwind {
; CHECK-LABEL: sar:
; CHECK: # %bb.0:
; CHECK-NEXT: sarl %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%ashr = ashr i32 %x, 1
%cmp = icmp eq i32 %ashr, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %ashr)
br label %return
return:
ret void
}
define void @shr(i32 %x) nounwind {
; CHECK-LABEL: shr:
; CHECK: # %bb.0:
; CHECK-NEXT: shrl %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%ashr = lshr i32 %x, 1
%cmp = icmp eq i32 %ashr, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %ashr)
br label %return
return:
ret void
}
define void @shri(i32 %x) nounwind {
; CHECK-LABEL: shri:
; CHECK: # %bb.0:
; CHECK-NEXT: shrl $3, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%ashr = lshr i32 %x, 3
%cmp = icmp eq i32 %ashr, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %ashr)
br label %return
return:
ret void
}
define void @shl(i32 %x) nounwind {
; CHECK-LABEL: shl:
; CHECK: # %bb.0:
; CHECK-NEXT: addl %edi, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%shl = shl i32 %x, 1
%cmp = icmp eq i32 %shl, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %shl)
br label %return
return:
ret void
}
define void @shli(i32 %x) nounwind {
; CHECK-LABEL: shli:
; CHECK: # %bb.0:
; CHECK-NEXT: shll $4, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%shl = shl i32 %x, 4
%cmp = icmp eq i32 %shl, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %shl)
br label %return
return:
ret void
}
define zeroext i1 @adc(i128 %x) nounwind {
; CHECK-LABEL: adc:
; CHECK: # %bb.0:
; CHECK-NEXT: movabsq $-9223372036854775808, %rax # imm = 0x8000000000000000
; CHECK-NEXT: addq %rdi, %rax
; CHECK-NEXT: adcq $0, %rsi
; CHECK-NEXT: sete %al
; CHECK-NEXT: retq
%add = add i128 %x, 9223372036854775808
%cmp = icmp ult i128 %add, 18446744073709551616
ret i1 %cmp
}
define zeroext i1 @sbb(i128 %x, i128 %y) nounwind {
; CHECK-LABEL: sbb:
; CHECK: # %bb.0:
; CHECK-NEXT: cmpq %rdx, %rdi
; CHECK-NEXT: sbbq %rcx, %rsi
; CHECK-NEXT: setns %al
; CHECK-NEXT: retq
%sub = sub i128 %x, %y
%cmp = icmp sge i128 %sub, 0
ret i1 %cmp
}
define void @andn(i32 %x, i32 %y) nounwind {
; CHECK-LABEL: andn:
; CHECK: # %bb.0:
; CHECK-NEXT: andnl %esi, %edi, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%not = xor i32 %x, -1
%andn = and i32 %y, %not
%cmp = icmp eq i32 %andn, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %andn)
br label %return
return:
ret void
}
declare i32 @llvm.x86.bmi.bextr.32(i32, i32) nounwind readnone
define void @bextr(i32 %x, i32 %y) nounwind {
; CHECK-LABEL: bextr:
; CHECK: # %bb.0:
; CHECK-NEXT: bextrl %esi, %edi, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%bextr = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %y)
%cmp = icmp eq i32 %bextr, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %bextr)
br label %return
return:
ret void
}
declare i32 @llvm.ctpop.i32(i32) nounwind readnone
define void @popcnt(i32 %x) nounwind {
; CHECK-LABEL: popcnt:
; CHECK: # %bb.0:
; CHECK-NEXT: popcntl %edi, %edi
; CHECK-NEXT: jne foo # TAILCALL
; CHECK-NEXT: # %bb.1: # %return
; CHECK-NEXT: retq
%popcnt = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %popcnt, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %popcnt)
br label %return
return:
ret void
}
declare i64 @llvm.cttz.i64(i64, i1)
define i64 @testCTZ(i64 %v) nounwind {
; CHECK-LABEL: testCTZ:
; CHECK: # %bb.0:
; CHECK-NEXT: tzcntq %rdi, %rcx
; CHECK-NEXT: movl $255, %eax
; CHECK-NEXT: cmovaeq %rcx, %rax
; CHECK-NEXT: retq
%cnt = tail call i64 @llvm.cttz.i64(i64 %v, i1 true)
%tobool = icmp eq i64 %v, 0
%cond = select i1 %tobool, i64 255, i64 %cnt
ret i64 %cond
}
declare i32 @llvm.cttz.i32(i32, i1)
define void @testCTZ2(i32 %v) nounwind {
; CHECK-LABEL: testCTZ2:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: tzcntl %edi, %ebx
; CHECK-NEXT: jb .LBB12_2
; CHECK-NEXT: # %bb.1: # %bb
; CHECK-NEXT: movl %ebx, %edi
; CHECK-NEXT: callq foo
; CHECK-NEXT: .LBB12_2: # %return
; CHECK-NEXT: movl %ebx, %edi
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: jmp foo32 # TAILCALL
%cnt = tail call i32 @llvm.cttz.i32(i32 %v, i1 true)
%cmp = icmp eq i32 %v, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %cnt)
br label %return
return:
tail call void @foo32(i32 %cnt)
ret void
}
define void @testCTZ3(i32 %v) nounwind {
; CHECK-LABEL: testCTZ3:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: tzcntl %edi, %ebx
; CHECK-NEXT: jae .LBB13_2
; CHECK-NEXT: # %bb.1: # %bb
; CHECK-NEXT: movl %ebx, %edi
; CHECK-NEXT: callq foo
; CHECK-NEXT: .LBB13_2: # %return
; CHECK-NEXT: movl %ebx, %edi
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: jmp foo32 # TAILCALL
%cnt = tail call i32 @llvm.cttz.i32(i32 %v, i1 true)
%cmp = icmp ne i32 %v, 0
br i1 %cmp, label %return, label %bb
bb:
tail call void @foo(i32 %cnt)
br label %return
return:
tail call void @foo32(i32 %cnt)
ret void
}
declare i64 @llvm.ctlz.i64(i64, i1)
define i64 @testCLZ(i64 %v) nounwind {
; CHECK-LABEL: testCLZ:
; CHECK: # %bb.0:
; CHECK-NEXT: lzcntq %rdi, %rcx
; CHECK-NEXT: movl $255, %eax
; CHECK-NEXT: cmovaeq %rcx, %rax
; CHECK-NEXT: retq
%cnt = tail call i64 @llvm.ctlz.i64(i64 %v, i1 true)
%tobool = icmp ne i64 %v, 0
%cond = select i1 %tobool, i64 %cnt, i64 255
ret i64 %cond
}
declare i64 @llvm.ctpop.i64(i64)
define i64 @testPOPCNT(i64 %v) nounwind {
; CHECK-LABEL: testPOPCNT:
; CHECK: # %bb.0:
; CHECK-NEXT: popcntq %rdi, %rcx
; CHECK-NEXT: movl $255, %eax
; CHECK-NEXT: cmovneq %rcx, %rax
; CHECK-NEXT: retq
%cnt = tail call i64 @llvm.ctpop.i64(i64 %v)
%tobool = icmp ne i64 %v, 0
%cond = select i1 %tobool, i64 %cnt, i64 255
ret i64 %cond
}
Codebase Browser
llvm