; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 ; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+ndd -verify-machineinstrs | FileCheck %s define i8 @dec8r(i8 noundef %a) { ; CHECK-LABEL: dec8r: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decb %dil, %al ; CHECK-NEXT: retq entry: %dec = sub i8 %a, 1 ret i8 %dec } define i16 @dec16r(i16 noundef %a) { ; CHECK-LABEL: dec16r: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decl %edi, %eax ; CHECK-NEXT: # kill: def $ax killed $ax killed $eax ; CHECK-NEXT: retq entry: %dec = sub i16 %a, 1 ret i16 %dec } define i32 @dec32r(i32 noundef %a) { ; CHECK-LABEL: dec32r: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decl %edi, %eax ; CHECK-NEXT: retq entry: %dec = sub i32 %a, 1 ret i32 %dec } define i64 @dec64r(i64 noundef %a) { ; CHECK-LABEL: dec64r: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decq %rdi, %rax ; CHECK-NEXT: retq entry: %dec = sub i64 %a, 1 ret i64 %dec } define i8 @dec8m(ptr %ptr) { ; CHECK-LABEL: dec8m: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decb (%rdi), %al ; CHECK-NEXT: retq entry: %a = load i8, ptr %ptr %dec = sub i8 %a, 1 ret i8 %dec } define i16 @dec16m(ptr %ptr) { ; CHECK-LABEL: dec16m: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movzwl (%rdi), %eax ; CHECK-NEXT: decl %eax ; CHECK-NEXT: # kill: def $ax killed $ax killed $eax ; CHECK-NEXT: retq entry: %a = load i16, ptr %ptr %dec = sub i16 %a, 1 ret i16 %dec } define i32 @dec32m(ptr %ptr) { ; CHECK-LABEL: dec32m: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decl (%rdi), %eax ; CHECK-NEXT: retq entry: %a = load i32, ptr %ptr %dec = sub i32 %a, 1 ret i32 %dec } define i64 @dec64m(ptr %ptr) { ; CHECK-LABEL: dec64m: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decq (%rdi), %rax ; CHECK-NEXT: retq entry: %a = load i64, ptr %ptr %dec = sub i64 %a, 1 ret i64 %dec } define void @dec8m_legacy(ptr %ptr) { ; CHECK-LABEL: dec8m_legacy: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decb (%rdi) ; CHECK-NEXT: retq entry: %a = load i8, ptr %ptr %dec = sub i8 %a, 1 store i8 %dec, ptr %ptr ret void } define void @dec16m_legacy(ptr %ptr) { ; CHECK-LABEL: dec16m_legacy: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decw (%rdi) ; CHECK-NEXT: retq entry: %a = load i16, ptr %ptr %dec = sub i16 %a, 1 store i16 %dec, ptr %ptr ret void } define void @dec32m_legacy(ptr %ptr) { ; CHECK-LABEL: dec32m_legacy: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decl (%rdi) ; CHECK-NEXT: retq entry: %a = load i32, ptr %ptr %dec = sub i32 %a, 1 store i32 %dec, ptr %ptr ret void } define void @dec64m_legacy(ptr %ptr) { ; CHECK-LABEL: dec64m_legacy: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: decq (%rdi) ; CHECK-NEXT: retq entry: %a = load i64, ptr %ptr %dec = sub i64 %a, 1 store i64 %dec, ptr %ptr ret void }