1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X86
3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
5 @a = common dso_local global i32 0, align 4
6 @c = common dso_local local_unnamed_addr global i8 0, align 1
7 @b = common dso_local local_unnamed_addr global ptr null, align 8
9 define dso_local void @e() {
11 ; X86: # %bb.0: # %entry
12 ; X86-NEXT: movl b, %eax
13 ; X86-NEXT: .p2align 4
14 ; X86-NEXT: .LBB0_1: # %for.cond
15 ; X86-NEXT: # =>This Inner Loop Header: Depth=1
16 ; X86-NEXT: movzbl c, %ecx
17 ; X86-NEXT: movb $0, c
18 ; X86-NEXT: leal a+2(%ecx), %ecx
19 ; X86-NEXT: movl %ecx, (%eax)
20 ; X86-NEXT: jmp .LBB0_1
23 ; X64: # %bb.0: # %entry
24 ; X64-NEXT: movq b(%rip), %rax
25 ; X64-NEXT: .p2align 4
26 ; X64-NEXT: .LBB0_1: # %for.cond
27 ; X64-NEXT: # =>This Inner Loop Header: Depth=1
28 ; X64-NEXT: movzbl c(%rip), %ecx
29 ; X64-NEXT: addq $a, %rcx
31 ; X64-NEXT: addq $2, %rcx
32 ; X64-NEXT: adcb $0, %dl
33 ; X64-NEXT: movb %dl, c(%rip)
34 ; X64-NEXT: movl %ecx, (%rax)
35 ; X64-NEXT: jmp .LBB0_1
37 %0 = load ptr, ptr @b, align 8
41 %1 = load i8, ptr @c, align 1
42 %conv = zext i8 %1 to i128
43 %add = add nuw nsw i128 %conv, add (i128 ptrtoint (ptr @a to i128), i128 2)
44 %2 = lshr i128 %add, 64
45 %conv1 = trunc i128 %2 to i8
46 store i8 %conv1, ptr @c, align 1
47 %conv2 = trunc i128 %add to i32
48 store i32 %conv2, ptr %0, align 4