; RUN: llc < %s -mtriple=x86_64-pc-linux -mattr=+bmi,+bmi2,+popcnt,+lzcnt | FileCheck %s declare void @foo(i32) declare void @foo32(i32) declare void @foo64(i64) ; CHECK-LABEL: neg: ; CHECK: negl %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @neg(i32 %x) nounwind { %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 } ; CHECK-LABEL: sar: ; CHECK: sarl %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @sar(i32 %x) nounwind { %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 } ; CHECK-LABEL: shr: ; CHECK: shrl %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @shr(i32 %x) nounwind { %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 } ; CHECK-LABEL: shri: ; CHECK: shrl $3, %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @shri(i32 %x) nounwind { %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 } ; CHECK-LABEL: shl: ; CHECK: addl %edi, %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @shl(i32 %x) nounwind { %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 } ; CHECK-LABEL: shli: ; CHECK: shll $4, %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @shli(i32 %x) nounwind { %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 } ; CHECK-LABEL: adc: ; CHECK: movabsq $-9223372036854775808, %rax ; CHECK-NEXT: addq %rdi, %rax ; CHECK-NEXT: adcq $0, %rsi ; CHECK-NEXT: sete %al ; CHECK: ret define zeroext i1 @adc(i128 %x) nounwind { %add = add i128 %x, 9223372036854775808 %cmp = icmp ult i128 %add, 18446744073709551616 ret i1 %cmp } ; CHECK-LABEL: sbb: ; CHECK: cmpq %rdx, %rdi ; CHECK-NEXT: sbbq %rcx, %rsi ; CHECK-NEXT: setns %al ; CHECK: ret define zeroext i1 @sbb(i128 %x, i128 %y) nounwind { %sub = sub i128 %x, %y %cmp = icmp sge i128 %sub, 0 ret i1 %cmp } ; CHECK-LABEL: andn: ; CHECK: andnl %esi, %edi, %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret define void @andn(i32 %x, i32 %y) nounwind { %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 } ; CHECK-LABEL: bextr: ; CHECK: bextrl %esi, %edi, %edi ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret declare i32 @llvm.x86.bmi.bextr.32(i32, i32) nounwind readnone define void @bextr(i32 %x, i32 %y) nounwind { %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 } ; CHECK-LABEL: popcnt: ; CHECK: popcntl ; CHECK-NEXT: je ; CHECK: jmp foo ; CHECK: ret declare i32 @llvm.ctpop.i32(i32) nounwind readnone define void @popcnt(i32 %x) nounwind { %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 } ; CHECK-LABEL: testCTZ ; CHECK: tzcntq ; CHECK-NOT: test ; CHECK: cmovaeq declare i64 @llvm.cttz.i64(i64, i1) define i64 @testCTZ(i64 %v) nounwind { %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 } ; CHECK-LABEL: testCTZ2 ; CHECK: tzcntl ; CHECK-NEXT: jb ; CHECK: jmp foo declare i32 @llvm.cttz.i32(i32, i1) define void @testCTZ2(i32 %v) nounwind { %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 } ; CHECK-LABEL: testCTZ3 ; CHECK: tzcntl ; CHECK-NEXT: jae ; CHECK: jmp foo define void @testCTZ3(i32 %v) nounwind { %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 } ; CHECK-LABEL: testCLZ ; CHECK: lzcntq ; CHECK-NOT: test ; CHECK: cmovaeq declare i64 @llvm.ctlz.i64(i64, i1) define i64 @testCLZ(i64 %v) nounwind { %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 } ; CHECK-LABEL: testPOPCNT ; CHECK: popcntq ; CHECK-NOT: test ; CHECK: cmovneq declare i64 @llvm.ctpop.i64(i64) define i64 @testPOPCNT(i64 %v) nounwind { %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 }