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-rw-r--r--test/CodeGen/X86/xor.ll133
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diff --git a/test/CodeGen/X86/xor.ll b/test/CodeGen/X86/xor.ll
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+; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s -check-prefix=X32
+; RUN: llc < %s -march=x86-64 | 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 %esi
+; X64: andl %edi, %esi
+; X64: movl %esi, %eax
+; X64: shrl %eax
+; 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 %eax
+; X64: andl {{.*%eax}}
+; X32: test4:
+; X32: notl %edx
+; X32: andl {{.*%edx}}
+}
+
+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: notw %ax
+; X64: andw {{.*%ax}}
+; X32: test5:
+; X32: notw %dx
+; X32: andw {{.*%dx}}
+}
+
+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 %al
+; X64: andb {{.*%al}}
+; X32: test6:
+; X32: notb %dl
+; X32: andb {{.*%dl}}
+}
+
+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, %eax
+; X64: andl {{.*%eax}}
+; X32: test7:
+; X32: xorl $2147483646, %edx
+; X32: andl {{.*%edx}}
+}
+