; RUN: llc < %s -mcpu=corei7 -march=x86 -mattr=+sse2 | FileCheck %s -check-prefix=X32
; RUN: llc < %s -mcpu=corei7 -mtriple=x86_64-linux | FileCheck %s -check-prefix=X64
; RUN: llc < %s -mcpu=corei7 -mtriple=x86_64-win32 | FileCheck %s -check-prefix=X64
; Though it is undefined, we want xor undef,undef to produce zero.
define <4 x i32> @test1() nounwind {
%tmp = xor <4 x i32> undef, undef
ret <4 x i32> %tmp
; X32: test1:
; X32: xorps %xmm0, %xmm0
; X32: ret
}
; Though it is undefined, we want xor undef,undef to produce zero.
define i32 @test2() nounwind{
%tmp = xor i32 undef, undef
ret i32 %tmp
; X32: test2:
; X32: xorl %eax, %eax
; X32: ret
}
define i32 @test3(i32 %a, i32 %b) nounwind {
entry:
%tmp1not = xor i32 %b, -2
%tmp3 = and i32 %tmp1not, %a
%tmp4 = lshr i32 %tmp3, 1
ret i32 %tmp4
; X64: test3:
; X64: notl
; X64: andl
; X64: shrl
; X64: ret
; X32: test3:
; X32: movl 8(%esp), %eax
; X32: notl %eax
; X32: andl 4(%esp), %eax
; X32: shrl %eax
; X32: ret
}
define i32 @test4(i32 %a, i32 %b) nounwind {
entry:
br label %bb
bb:
%b_addr.0 = phi i32 [ %b, %entry ], [ %tmp8, %bb ]
%a_addr.0 = phi i32 [ %a, %entry ], [ %tmp3, %bb ]
%tmp3 = xor i32 %a_addr.0, %b_addr.0
%tmp4not = xor i32 %tmp3, 2147483647
%tmp6 = and i32 %tmp4not, %b_addr.0
%tmp8 = shl i32 %tmp6, 1
%tmp10 = icmp eq i32 %tmp8, 0
br i1 %tmp10, label %bb12, label %bb
bb12:
ret i32 %tmp3
; X64: test4:
; X64: notl [[REG:%[a-z]+]]
; X64: andl {{.*}}[[REG]]
; X32: test4:
; X32: notl [[REG:%[a-z]+]]
; X32: andl {{.*}}[[REG]]
}
define i16 @test5(i16 %a, i16 %b) nounwind {
entry:
br label %bb
bb:
%b_addr.0 = phi i16 [ %b, %entry ], [ %tmp8, %bb ]
%a_addr.0 = phi i16 [ %a, %entry ], [ %tmp3, %bb ]
%tmp3 = xor i16 %a_addr.0, %b_addr.0
%tmp4not = xor i16 %tmp3, 32767
%tmp6 = and i16 %tmp4not, %b_addr.0
%tmp8 = shl i16 %tmp6, 1
%tmp10 = icmp eq i16 %tmp8, 0
br i1 %tmp10, label %bb12, label %bb
bb12:
ret i16 %tmp3
; X64: test5:
; X64: notl [[REG:%[a-z]+]]
; X64: andl {{.*}}[[REG]]
; X32: test5:
; X32: notl [[REG:%[a-z]+]]
; X32: andl {{.*}}[[REG]]
}
define i8 @test6(i8 %a, i8 %b) nounwind {
entry:
br label %bb
bb:
%b_addr.0 = phi i8 [ %b, %entry ], [ %tmp8, %bb ]
%a_addr.0 = phi i8 [ %a, %entry ], [ %tmp3, %bb ]
%tmp3 = xor i8 %a_addr.0, %b_addr.0
%tmp4not = xor i8 %tmp3, 127
%tmp6 = and i8 %tmp4not, %b_addr.0
%tmp8 = shl i8 %tmp6, 1
%tmp10 = icmp eq i8 %tmp8, 0
br i1 %tmp10, label %bb12, label %bb
bb12:
ret i8 %tmp3
; X64: test6:
; X64: notb [[REG:%[a-z]+]]
; X64: andb {{.*}}[[REG]]
; X32: test6:
; X32: notb [[REG:%[a-z]+]]
; X32: andb {{.*}}[[REG]]
}
define i32 @test7(i32 %a, i32 %b) nounwind {
entry:
br label %bb
bb:
%b_addr.0 = phi i32 [ %b, %entry ], [ %tmp8, %bb ]
%a_addr.0 = phi i32 [ %a, %entry ], [ %tmp3, %bb ]
%tmp3 = xor i32 %a_addr.0, %b_addr.0
%tmp4not = xor i32 %tmp3, 2147483646
%tmp6 = and i32 %tmp4not, %b_addr.0
%tmp8 = shl i32 %tmp6, 1
%tmp10 = icmp eq i32 %tmp8, 0
br i1 %tmp10, label %bb12, label %bb
bb12:
ret i32 %tmp3
; X64: test7:
; X64: xorl $2147483646, [[REG:%[a-z]+]]
; X64: andl {{.*}}[[REG]]
; X32: test7:
; X32: xorl $2147483646, [[REG:%[a-z]+]]
; X32: andl {{.*}}[[REG]]
}
define i32 @test8(i32 %a) nounwind {
; rdar://7553032
entry:
%t1 = sub i32 0, %a
%t2 = add i32 %t1, -1
ret i32 %t2
; X64: test8:
; X64: notl {{%eax|%edi|%ecx}}
; X32: test8:
; X32: notl %eax
}