; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s ; rdar://7329206 ; Use sbb x, x to materialize carry bit in a GPR. The value is either ; all 1's or all 0's. define zeroext i16 @t1(i16 zeroext %x) nounwind readnone ssp { ; CHECK-LABEL: t1: ; CHECK: ## %bb.0: ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: cmpw $26, %di ; CHECK-NEXT: seta %al ; CHECK-NEXT: shll $5, %eax ; CHECK-NEXT: retq %t0 = icmp ugt i16 %x, 26 %if = select i1 %t0, i16 32, i16 0 ret i16 %if } define zeroext i16 @t2(i16 zeroext %x) nounwind readnone ssp { ; CHECK-LABEL: t2: ; CHECK: ## %bb.0: ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: cmpw $26, %di ; CHECK-NEXT: setb %al ; CHECK-NEXT: shll $5, %eax ; CHECK-NEXT: retq %t0 = icmp ult i16 %x, 26 %if = select i1 %t0, i16 32, i16 0 ret i16 %if } define i64 @t3(i64 %x) nounwind readnone ssp { ; CHECK-LABEL: t3: ; CHECK: ## %bb.0: ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: cmpq $18, %rdi ; CHECK-NEXT: setb %al ; CHECK-NEXT: shlq $6, %rax ; CHECK-NEXT: retq %t0 = icmp ult i64 %x, 18 %if = select i1 %t0, i64 64, i64 0 ret i64 %if } @v4 = common global i32 0, align 4 define i32 @t4(i32 %a) { ; CHECK-LABEL: t4: ; CHECK: ## %bb.0: ; CHECK-NEXT: movq _v4@{{.*}}(%rip), %rax ; CHECK-NEXT: cmpl $1, (%rax) ; CHECK-NEXT: movw $1, %ax ; CHECK-NEXT: adcw $0, %ax ; CHECK-NEXT: shll $16, %eax ; CHECK-NEXT: retq %t0 = load i32, i32* @v4, align 4 %not.tobool = icmp eq i32 %t0, 0 %conv.i = sext i1 %not.tobool to i16 %call.lobit = lshr i16 %conv.i, 15 %add.i.1 = add nuw nsw i16 %call.lobit, 1 %conv4.2 = zext i16 %add.i.1 to i32 %add = shl nuw nsw i32 %conv4.2, 16 ret i32 %add } define i8 @t5(i32 %a) #0 { ; CHECK-LABEL: t5: ; CHECK: ## %bb.0: ; CHECK-NEXT: testl %edi, %edi ; CHECK-NEXT: setns %al ; CHECK-NEXT: retq %.lobit = lshr i32 %a, 31 %trunc = trunc i32 %.lobit to i8 %.not = xor i8 %trunc, 1 ret i8 %.not } define zeroext i1 @t6(i32 %a) #0 { ; CHECK-LABEL: t6: ; CHECK: ## %bb.0: ; CHECK-NEXT: testl %edi, %edi ; CHECK-NEXT: setns %al ; CHECK-NEXT: retq %.lobit = lshr i32 %a, 31 %trunc = trunc i32 %.lobit to i1 %.not = xor i1 %trunc, 1 ret i1 %.not } define i16 @shift_and(i16 %a) { ; CHECK-LABEL: shift_and: ; CHECK: ## %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrl $10, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: ## kill: def $ax killed $ax killed $eax ; CHECK-NEXT: retq %and = and i16 %a, 1024 %cmp = icmp ne i16 %and, 0 %conv = zext i1 %cmp to i16 ret i16 %conv } attributes #0 = { "target-cpu"="skylake-avx512" }