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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s3; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=CHECK644 5; Check a few invalid patterns for halfword bswap pattern matching6 7; Don't match a near-miss 32-bit packed halfword bswap8; (with only half of the swap tree valid).9 define i32 @test1(i32 %x) nounwind {10; CHECK-LABEL: test1:11; CHECK: # %bb.0:12; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax13; CHECK-NEXT: movl %eax, %ecx14; CHECK-NEXT: andl $16711935, %ecx # imm = 0xFF00FF15; CHECK-NEXT: shll $8, %ecx16; CHECK-NEXT: orl $-16777216, %eax # imm = 0xFF00000017; CHECK-NEXT: shrl $8, %eax18; CHECK-NEXT: orl %ecx, %eax19; CHECK-NEXT: retl20;21; CHECK64-LABEL: test1:22; CHECK64: # %bb.0:23; CHECK64-NEXT: movl %edi, %eax24; CHECK64-NEXT: andl $16711935, %eax # imm = 0xFF00FF25; CHECK64-NEXT: shll $8, %eax26; CHECK64-NEXT: orl $-16777216, %edi # imm = 0xFF00000027; CHECK64-NEXT: shrl $8, %edi28; CHECK64-NEXT: orl %edi, %eax29; CHECK64-NEXT: retq30 %byte0 = and i32 %x, 255 ; 0x000000ff31 %byte1 = and i32 %x, 65280 ; 0x0000ff0032 %byte2 = and i32 %x, 16711680 ; 0x00ff000033 %byte3 = or i32 %x, 4278190080 ; 0xff00000034 %tmp0 = shl i32 %byte0, 835 %tmp1 = lshr i32 %byte1, 836 %tmp2 = shl i32 %byte2, 837 %tmp3 = lshr i32 %byte3, 838 %or0 = or i32 %tmp0, %tmp139 %or1 = or i32 %tmp2, %tmp340 %result = or i32 %or0, %or141 ret i32 %result42}43 44; Don't match a near-miss 32-bit packed halfword bswap45; (with swapped lshr/shl)46; ((x >> 8) & 0x0000ff00) |47; ((x << 8) & 0x000000ff) |48; ((x << 8) & 0xff000000) |49; ((x >> 8) & 0x00ff0000)50define i32 @test2(i32 %x) nounwind {51; CHECK-LABEL: test2:52; CHECK: # %bb.0:53; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx54; CHECK-NEXT: movl %ecx, %eax55; CHECK-NEXT: shrl $8, %eax56; CHECK-NEXT: shll $8, %ecx57; CHECK-NEXT: movl %eax, %edx58; CHECK-NEXT: andl $65280, %edx # imm = 0xFF0059; CHECK-NEXT: andl $-16777216, %ecx # imm = 0xFF00000060; CHECK-NEXT: andl $16711680, %eax # imm = 0xFF000061; CHECK-NEXT: orl %ecx, %eax62; CHECK-NEXT: orl %edx, %eax63; CHECK-NEXT: retl64;65; CHECK64-LABEL: test2:66; CHECK64: # %bb.0:67; CHECK64-NEXT: movl %edi, %eax68; CHECK64-NEXT: shrl $8, %eax69; CHECK64-NEXT: shll $8, %edi70; CHECK64-NEXT: movl %eax, %ecx71; CHECK64-NEXT: andl $65280, %ecx # imm = 0xFF0072; CHECK64-NEXT: andl $-16777216, %edi # imm = 0xFF00000073; CHECK64-NEXT: andl $16711680, %eax # imm = 0xFF000074; CHECK64-NEXT: orl %edi, %eax75; CHECK64-NEXT: orl %ecx, %eax76; CHECK64-NEXT: retq77 %byte1 = lshr i32 %x, 878 %byte0 = shl i32 %x, 879 %byte3 = shl i32 %x, 880 %byte2 = lshr i32 %x, 881 %tmp1 = and i32 %byte1, 65280 ; 0x0000ff0082 %tmp0 = and i32 %byte0, 255 ; 0x000000ff83 %tmp3 = and i32 %byte3, 4278190080 ; 0xff00000084 %tmp2 = and i32 %byte2, 16711680 ; 0x00ff000085 %or0 = or i32 %tmp0, %tmp186 %or1 = or i32 %tmp2, %tmp387 %result = or i32 %or0, %or188 ret i32 %result89}90 91; Invalid pattern involving a unary op92define i32 @test3(float %x) nounwind {93; CHECK-LABEL: test3:94; CHECK: # %bb.0:95; CHECK-NEXT: subl $8, %esp96; CHECK-NEXT: flds {{[0-9]+}}(%esp)97; CHECK-NEXT: fnstcw (%esp)98; CHECK-NEXT: movzwl (%esp), %eax99; CHECK-NEXT: orl $3072, %eax # imm = 0xC00100; CHECK-NEXT: movw %ax, {{[0-9]+}}(%esp)101; CHECK-NEXT: fldcw {{[0-9]+}}(%esp)102; CHECK-NEXT: fistpl {{[0-9]+}}(%esp)103; CHECK-NEXT: fldcw (%esp)104; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx105; CHECK-NEXT: movl %ecx, %edx106; CHECK-NEXT: shll $8, %edx107; CHECK-NEXT: movl %ecx, %eax108; CHECK-NEXT: shrl $8, %eax109; CHECK-NEXT: andl $65280, %ecx # imm = 0xFF00110; CHECK-NEXT: andl $-16777216, %edx # imm = 0xFF000000111; CHECK-NEXT: andl $16711680, %eax # imm = 0xFF0000112; CHECK-NEXT: orl %edx, %eax113; CHECK-NEXT: orl %ecx, %eax114; CHECK-NEXT: addl $8, %esp115; CHECK-NEXT: retl116;117; CHECK64-LABEL: test3:118; CHECK64: # %bb.0:119; CHECK64-NEXT: cvttss2si %xmm0, %ecx120; CHECK64-NEXT: movl %ecx, %edx121; CHECK64-NEXT: shll $8, %edx122; CHECK64-NEXT: movl %ecx, %eax123; CHECK64-NEXT: shrl $8, %eax124; CHECK64-NEXT: andl $65280, %ecx # imm = 0xFF00125; CHECK64-NEXT: andl $-16777216, %edx # imm = 0xFF000000126; CHECK64-NEXT: andl $16711680, %eax # imm = 0xFF0000127; CHECK64-NEXT: orl %edx, %eax128; CHECK64-NEXT: orl %ecx, %eax129; CHECK64-NEXT: retq130 %integer = fptosi float %x to i32131 %byte0 = shl i32 %integer, 8132 %byte3 = shl i32 %integer, 8133 %byte2 = lshr i32 %integer, 8134 %tmp1 = and i32 %integer, 65280 ; 0x0000ff00135 %tmp0 = and i32 %byte0, 255 ; 0x000000ff136 %tmp3 = and i32 %byte3, 4278190080 ; 0xff000000137 %tmp2 = and i32 %byte2, 16711680 ; 0x00ff0000138 %or0 = or i32 %tmp0, %tmp1139 %or1 = or i32 %tmp2, %tmp3140 %result = or i32 %or0, %or1141 ret i32 %result142}143