cmpb.ll
5.54 KB
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; RUN: llc -verify-machineinstrs -mcpu pwr7 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: nounwind readnone
define zeroext i16 @test16(i16 zeroext %x, i16 zeroext %y) #0 {
entry:
%0 = xor i16 %y, %x
%1 = and i16 %0, 255
%cmp = icmp eq i16 %1, 0
%cmp20 = icmp ult i16 %0, 256
%conv25 = select i1 %cmp, i32 255, i32 0
%conv27 = select i1 %cmp20, i32 65280, i32 0
%or = or i32 %conv25, %conv27
%conv29 = trunc i32 %or to i16
ret i16 %conv29
; CHECK-LABEL: @test16
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: clrldi 3, [[REG1]], 48
; CHECK: blr
}
define zeroext i16 @test16p1(i16 zeroext %x, i16 zeroext %y) #0 {
entry:
%0 = xor i16 %y, %x
%1 = and i16 %0, 255
%cmp = icmp eq i16 %1, 0
%cmp20 = icmp ult i16 %0, 256
%conv28 = select i1 %cmp, i32 5, i32 0
%conv30 = select i1 %cmp20, i32 65280, i32 0
%or = or i32 %conv28, %conv30
%conv32 = trunc i32 %or to i16
ret i16 %conv32
; CHECK-LABEL: @test16p1
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: andi. 3, [[REG1]], 65285
; CHECK: blr
}
; Function Attrs: nounwind readnone
define zeroext i16 @test16p2(i16 zeroext %x, i16 zeroext %y) #0 {
entry:
%0 = xor i16 %y, %x
%1 = and i16 %0, 255
%cmp = icmp eq i16 %1, 0
%cmp20 = icmp ult i16 %0, 256
%conv28 = select i1 %cmp, i32 255, i32 0
%conv30 = select i1 %cmp20, i32 1280, i32 0
%or = or i32 %conv28, %conv30
%conv32 = trunc i32 %or to i16
ret i16 %conv32
; CHECK-LABEL: @test16p2
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: andi. 3, [[REG1]], 1535
; CHECK: blr
}
; Function Attrs: nounwind readnone
define zeroext i16 @test16p3(i16 zeroext %x, i16 zeroext %y) #0 {
entry:
%0 = xor i16 %y, %x
%1 = and i16 %0, 255
%cmp = icmp eq i16 %1, 0
%cmp20 = icmp ult i16 %0, 256
%conv27 = select i1 %cmp, i32 255, i32 0
%conv29 = select i1 %cmp20, i32 1024, i32 1280
%or = or i32 %conv27, %conv29
%conv31 = trunc i32 %or to i16
ret i16 %conv31
; CHECK-LABEL: @test16p3
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: clrldi [[REG2:[0-9]+]], [[REG1]], 55
; CHECK: xori 3, [[REG2]], 1280
; CHECK: blr
}
define zeroext i32 @test32(i32 zeroext %x, i32 zeroext %y) #0 {
entry:
%0 = xor i32 %y, %x
%1 = and i32 %0, 255
%cmp = icmp eq i32 %1, 0
%2 = and i32 %0, 65280
%cmp28 = icmp eq i32 %2, 0
%3 = and i32 %0, 16711680
%cmp34 = icmp eq i32 %3, 0
%cmp40 = icmp ult i32 %0, 16777216
%conv44 = select i1 %cmp, i32 255, i32 0
%conv45 = select i1 %cmp28, i32 65280, i32 0
%conv47 = select i1 %cmp34, i32 16711680, i32 0
%conv50 = select i1 %cmp40, i32 -16777216, i32 0
%or = or i32 %conv45, %conv50
%or49 = or i32 %or, %conv44
%or52 = or i32 %or49, %conv47
ret i32 %or52
; CHECK-LABEL: @test32
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: clrldi 3, [[REG1]], 32
; CHECK: blr
}
define zeroext i32 @test32p1(i32 zeroext %x, i32 zeroext %y) #0 {
entry:
%0 = xor i32 %y, %x
%1 = and i32 %0, 255
%cmp = icmp eq i32 %1, 0
%2 = and i32 %0, 65280
%cmp28 = icmp eq i32 %2, 0
%3 = and i32 %0, 16711680
%cmp34 = icmp eq i32 %3, 0
%cmp40 = icmp ult i32 %0, 16777216
%conv47 = select i1 %cmp, i32 255, i32 0
%conv48 = select i1 %cmp28, i32 65280, i32 0
%conv50 = select i1 %cmp34, i32 458752, i32 0
%conv53 = select i1 %cmp40, i32 -16777216, i32 0
%or = or i32 %conv48, %conv53
%or52 = or i32 %or, %conv47
%or55 = or i32 %or52, %conv50
ret i32 %or55
; CHECK-LABEL: @test32p1
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: rldicl [[REG2:[0-9]+]], [[REG1]], 40, 5
; CHECK: rldicl 3, [[REG2]], 24, 32
; CHECK: blr
}
define zeroext i32 @test32p2(i32 zeroext %x, i32 zeroext %y) #0 {
entry:
%0 = xor i32 %y, %x
%1 = and i32 %0, 255
%cmp = icmp eq i32 %1, 0
%2 = and i32 %0, 65280
%cmp22 = icmp eq i32 %2, 0
%cmp28 = icmp ult i32 %0, 16777216
%conv32 = select i1 %cmp, i32 255, i32 0
%conv33 = select i1 %cmp22, i32 65280, i32 0
%conv35 = select i1 %cmp28, i32 -16777216, i32 0
%or = or i32 %conv33, %conv35
%or37 = or i32 %or, %conv32
ret i32 %or37
; CHECK-LABEL: @test32p2
; CHECK: cmpb [[REG1:[0-9]+]], 4, 3
; CHECK: rldicl [[REG2:[0-9]+]], [[REG1]], 40, 8
; CHECK: rldicl 3, [[REG2]], 24, 32
; CHECK: blr
}
define i64 @test64(i64 %x, i64 %y) #0 {
entry:
%shr19 = lshr i64 %x, 56
%conv21 = trunc i64 %shr19 to i32
%shr43 = lshr i64 %y, 56
%conv45 = trunc i64 %shr43 to i32
%0 = xor i64 %y, %x
%1 = and i64 %0, 255
%cmp = icmp eq i64 %1, 0
%2 = and i64 %0, 65280
%cmp52 = icmp eq i64 %2, 0
%3 = and i64 %0, 16711680
%cmp58 = icmp eq i64 %3, 0
%4 = and i64 %0, 4278190080
%cmp64 = icmp eq i64 %4, 0
%5 = and i64 %0, 1095216660480
%cmp70 = icmp eq i64 %5, 0
%6 = and i64 %0, 280375465082880
%cmp76 = icmp eq i64 %6, 0
%7 = and i64 %0, 71776119061217280
%cmp82 = icmp eq i64 %7, 0
%cmp88 = icmp eq i32 %conv21, %conv45
%conv92 = select i1 %cmp, i64 255, i64 0
%conv93 = select i1 %cmp52, i64 65280, i64 0
%or = or i64 %conv92, %conv93
%conv95 = select i1 %cmp58, i64 16711680, i64 0
%or97 = or i64 %or, %conv95
%conv98 = select i1 %cmp64, i64 4278190080, i64 0
%or100 = or i64 %or97, %conv98
%conv101 = select i1 %cmp70, i64 1095216660480, i64 0
%or103 = or i64 %or100, %conv101
%conv104 = select i1 %cmp76, i64 280375465082880, i64 0
%or106 = or i64 %or103, %conv104
%conv107 = select i1 %cmp82, i64 71776119061217280, i64 0
%or109 = or i64 %or106, %conv107
%conv110 = select i1 %cmp88, i64 -72057594037927936, i64 0
%or112 = or i64 %or109, %conv110
ret i64 %or112
; CHECK-LABEL: @test64
; CHECK: cmpb 3, 3, 4
; CHECK-NOT: rldicl
; CHECK: blr
}
attributes #0 = { nounwind readnone }