1 ; The register allocator can commute two-address instructions to avoid
2 ; insertion of register-register copies.
4 ; Make sure there are only 3 mov's for each testcase
5 ; RUN: llc < %s -mtriple=i686-pc-linux-gnu -mcpu=corei7 | FileCheck %s -check-prefix=LINUX
6 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s -check-prefix=DARWIN
9 @G = external global i32 ; <i32*> [#uses=2]
11 declare void @ext(i32)
13 define i32 @t1(i32 %X, i32 %Y) nounwind {
15 ; LINUX: movl 4(%esp), %eax
16 ; LINUX: movl 8(%esp), %ecx
17 ; LINUX: addl %eax, %ecx
19 %Z = add i32 %X, %Y ; <i32> [#uses=1]
24 define i32 @t2(i32 %X, i32 %Y) nounwind {
26 ; LINUX: movl 4(%esp), %eax
27 ; LINUX: movl 8(%esp), %ecx
28 ; LINUX: xorl %eax, %ecx
30 %Z = xor i32 %X, %Y ; <i32> [#uses=1]
36 %0 = type { i64, i32 }
38 define %0 @t3(i32 %lb, i8 zeroext %has_lb, i8 zeroext %lb_inclusive, i32 %ub, i8 zeroext %has_ub, i8 zeroext %ub_inclusive) nounwind {
41 ; DARWIN: shlq $32, %rcx
42 ; DARWIN-NEXT: orq %rcx, %rax
43 ; DARWIN-NEXT: shll $8
45 %tmp21 = zext i32 %lb to i64
46 %tmp23 = zext i32 %ub to i64
47 %tmp24 = shl i64 %tmp23, 32
48 %ins26 = or i64 %tmp24, %tmp21
49 %tmp28 = zext i8 %has_lb to i32
50 %tmp33 = zext i8 %has_ub to i32
51 %tmp34 = shl i32 %tmp33, 8
52 %tmp38 = zext i8 %lb_inclusive to i32
53 %tmp39 = shl i32 %tmp38, 16
54 %tmp43 = zext i8 %ub_inclusive to i32
55 %tmp44 = shl i32 %tmp43, 24
56 %ins31 = or i32 %tmp39, %tmp28
57 %ins36 = or i32 %ins31, %tmp34
58 %ins46 = or i32 %ins36, %tmp44
59 %tmp16 = insertvalue %0 undef, i64 %ins26, 0
60 %tmp19 = insertvalue %0 %tmp16, i32 %ins46, 1