; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; Check that 64-bit division is bypassed correctly. ; RUN: llc < %s -mattr=+idivq-to-divl -mtriple=x86_64-unknown-linux-gnu | FileCheck %s ; Additional tests for 64-bit divide bypass define i64 @Test_get_quotient(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: Test_get_quotient: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: movq %rdi, %rcx ; CHECK-NEXT: orq %rsi, %rcx ; CHECK-NEXT: shrq $32, %rcx ; CHECK-NEXT: je .LBB0_1 ; CHECK-NEXT: # %bb.2: ; CHECK-NEXT: cqto ; CHECK-NEXT: idivq %rsi ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB0_1: ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: xorl %edx, %edx ; CHECK-NEXT: divl %esi ; CHECK-NEXT: # kill: def $eax killed $eax def $rax ; CHECK-NEXT: retq %result = sdiv i64 %a, %b ret i64 %result } define i64 @Test_get_remainder(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: Test_get_remainder: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: movq %rdi, %rcx ; CHECK-NEXT: orq %rsi, %rcx ; CHECK-NEXT: shrq $32, %rcx ; CHECK-NEXT: je .LBB1_1 ; CHECK-NEXT: # %bb.2: ; CHECK-NEXT: cqto ; CHECK-NEXT: idivq %rsi ; CHECK-NEXT: movq %rdx, %rax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB1_1: ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: xorl %edx, %edx ; CHECK-NEXT: divl %esi ; CHECK-NEXT: movl %edx, %eax ; CHECK-NEXT: retq %result = srem i64 %a, %b ret i64 %result } define i64 @Test_get_quotient_and_remainder(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: Test_get_quotient_and_remainder: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: movq %rdi, %rcx ; CHECK-NEXT: orq %rsi, %rcx ; CHECK-NEXT: shrq $32, %rcx ; CHECK-NEXT: je .LBB2_1 ; CHECK-NEXT: # %bb.2: ; CHECK-NEXT: cqto ; CHECK-NEXT: idivq %rsi ; CHECK-NEXT: addq %rdx, %rax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB2_1: ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: xorl %edx, %edx ; CHECK-NEXT: divl %esi ; CHECK-NEXT: # kill: def $edx killed $edx def $rdx ; CHECK-NEXT: # kill: def $eax killed $eax def $rax ; CHECK-NEXT: addq %rdx, %rax ; CHECK-NEXT: retq %resultdiv = sdiv i64 %a, %b %resultrem = srem i64 %a, %b %result = add i64 %resultdiv, %resultrem ret i64 %result } define void @PR43514(i32 %x, i32 %y) { ; CHECK-LABEL: PR43514: ; CHECK: # %bb.0: ; CHECK-NEXT: retq %z1 = zext i32 %x to i64 %z2 = zext i32 %y to i64 %s = srem i64 %z1, %z2 ret void }