; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #1 define dso_local void @copy_7_bytes(ptr noalias nocapture, ptr noalias nocapture readonly) nounwind #0 { ; CHECK-LABEL: copy_7_bytes: ; CHECK: # %bb.0: ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: movl 3(%rsi), %ecx ; CHECK-NEXT: movl %ecx, 3(%rdi) ; CHECK-NEXT: movl %eax, (%rdi) ; CHECK-NEXT: retq tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %0, ptr align 1 %1, i64 7, i1 false) ret void } define dso_local void @copy_7_bytes_volatile(ptr noalias nocapture, ptr noalias nocapture readonly) nounwind #0 { ; CHECK-LABEL: copy_7_bytes_volatile: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl 6(%rsi), %eax ; CHECK-NEXT: movb %al, 6(%rdi) ; CHECK-NEXT: movzwl 4(%rsi), %eax ; CHECK-NEXT: movw %ax, 4(%rdi) ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: movl %eax, (%rdi) ; CHECK-NEXT: retq tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %0, ptr align 1 %1, i64 7, i1 true) ret void } declare void @llvm.memmove.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1 immarg) #1 define dso_local void @move_7_bytes(ptr nocapture, ptr nocapture readonly) nounwind #0 { ; CHECK-LABEL: move_7_bytes: ; CHECK: # %bb.0: ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: movzwl 4(%rsi), %ecx ; CHECK-NEXT: movzbl 6(%rsi), %edx ; CHECK-NEXT: movb %dl, 6(%rdi) ; CHECK-NEXT: movw %cx, 4(%rdi) ; CHECK-NEXT: movl %eax, (%rdi) ; CHECK-NEXT: retq tail call void @llvm.memmove.p0.p0.i64(ptr align 1 %0, ptr align 1 %1, i64 7, i1 false) ret void } define dso_local void @move_7_bytes_volatile(ptr nocapture, ptr nocapture readonly) nounwind #0 { ; CHECK-LABEL: move_7_bytes_volatile: ; CHECK: # %bb.0: ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: movzwl 4(%rsi), %ecx ; CHECK-NEXT: movzbl 6(%rsi), %edx ; CHECK-NEXT: movb %dl, 6(%rdi) ; CHECK-NEXT: movw %cx, 4(%rdi) ; CHECK-NEXT: movl %eax, (%rdi) ; CHECK-NEXT: retq tail call void @llvm.memmove.p0.p0.i64(ptr align 1 %0, ptr align 1 %1, i64 7, i1 true) ret void } declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8 , i64, i1 immarg) #1 define dso_local void @set_7_bytes(ptr noalias nocapture) nounwind #0 { ; CHECK-LABEL: set_7_bytes: ; CHECK: # %bb.0: ; CHECK-NEXT: movl $16843009, 3(%rdi) # imm = 0x1010101 ; CHECK-NEXT: movl $16843009, (%rdi) # imm = 0x1010101 ; CHECK-NEXT: retq tail call void @llvm.memset.p0.i64(ptr align 1 %0, i8 1, i64 7, i1 false) ret void } define dso_local void @set_7_bytes_volatile(ptr noalias nocapture) nounwind #0 { ; CHECK-LABEL: set_7_bytes_volatile: ; CHECK: # %bb.0: ; CHECK-NEXT: movb $1, 6(%rdi) ; CHECK-NEXT: movw $257, 4(%rdi) # imm = 0x101 ; CHECK-NEXT: movl $16843009, (%rdi) # imm = 0x1010101 ; CHECK-NEXT: retq tail call void @llvm.memset.p0.i64(ptr align 1 %0, i8 1, i64 7, i1 true) ret void } attributes #0 = { noreturn nounwind uwtable "target-cpu"="x86-64" } attributes #1 = { argmemonly nounwind }