xref: /llvm-project/llvm/test/CodeGen/X86/add-of-mul.ll (revision fe4dbbb4671eea11f8aaae2f5f3b485128e8c411)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
3
4define i32 @test_scalar(i32 %x) {
5; CHECK-LABEL: test_scalar:
6; CHECK:       # %bb.0:
7; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
8; CHECK-NEXT:    leal (,%rdi,4), %eax
9; CHECK-NEXT:    retq
10  %mul = mul i32 %x, 3
11  %add = add i32 %mul, %x
12  ret i32 %add
13}
14
15define i32 @test_scalar_commuted(i32 %x) {
16; CHECK-LABEL: test_scalar_commuted:
17; CHECK:       # %bb.0:
18; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
19; CHECK-NEXT:    leal (,%rdi,4), %eax
20; CHECK-NEXT:    retq
21  %mul = mul i32 %x, 3
22  %add = add i32 %x, %mul
23  ret i32 %add
24}
25
26define <4 x i32> @test_vector(<4 x i32> %x) {
27; CHECK-LABEL: test_vector:
28; CHECK:       # %bb.0:
29; CHECK-NEXT:    pslld $2, %xmm0
30; CHECK-NEXT:    retq
31  %mul = mul <4 x i32> %x, <i32 3, i32 3, i32 3, i32 3>
32  %add = add <4 x i32> %mul, %x
33  ret <4 x i32> %add
34}
35
36define ptr @test_ptr(ptr %p) {
37; CHECK-LABEL: test_ptr:
38; CHECK:       # %bb.0:
39; CHECK-NEXT:    leaq (,%rdi,4), %rax
40; CHECK-NEXT:    retq
41  %addr = ptrtoint ptr %p to i64
42  %mul = mul i64 %addr, 3
43  %res = getelementptr i8, ptr %p, i64 %mul
44  ret ptr %res
45}
46
47define i32 @test_extra_use(i32 %x, ptr %p) {
48; CHECK-LABEL: test_extra_use:
49; CHECK:       # %bb.0:
50; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
51; CHECK-NEXT:    leal (%rdi,%rdi,2), %eax
52; CHECK-NEXT:    movl %eax, (%rsi)
53; CHECK-NEXT:    addl %edi, %eax
54; CHECK-NEXT:    retq
55  %mul = mul i32 %x, 3
56  store i32 %mul, ptr %p
57  %add = add i32 %mul, %x
58  ret i32 %add
59}
60
61define i32 @test_different_operand(i32 %x, i32 %y) {
62; CHECK-LABEL: test_different_operand:
63; CHECK:       # %bb.0:
64; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
65; CHECK-NEXT:    leal (%rdi,%rdi,2), %eax
66; CHECK-NEXT:    addl %esi, %eax
67; CHECK-NEXT:    retq
68  %mul = mul i32 %x, 3
69  %add = add i32 %mul, %y
70  ret i32 %add
71}
72