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d4c615be8c
Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
140 lines
3.4 KiB
YAML
140 lines
3.4 KiB
YAML
# RUN: llc -start-after=machine-sink -stop-after=peephole-opt -mtriple=powerpc64-unknown-linux-gnu -o - %s | FileCheck %s
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--- |
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; ModuleID = '<stdin>'
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source_filename = "<stdin>"
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; Function Attrs: nounwind readnone
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declare i128 @llvm.cttz.i128(i128, i1) #0
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define void @fn1(i128, i128, i1) {
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top:
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br label %loop
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loop: ; preds = %loop, %top
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%v = phi i128 [ %3, %loop ], [ %0, %top ]
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%u = phi i128 [ %3, %loop ], [ %1, %top ]
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%s = sub i128 %v, %u
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%3 = call i128 @llvm.cttz.i128(i128 %s, i1 false)
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br label %loop
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}
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #1
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind }
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...
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---
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name: fn1
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alignment: 2
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exposesReturnsTwice: false
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tracksRegLiveness: true
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registers:
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- { id: 0, class: g8rc }
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- { id: 1, class: g8rc }
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- { id: 2, class: g8rc }
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- { id: 3, class: g8rc }
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- { id: 4, class: g8rc }
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- { id: 5, class: g8rc }
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- { id: 6, class: g8rc }
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- { id: 7, class: g8rc }
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- { id: 8, class: g8rc }
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- { id: 9, class: g8rc }
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- { id: 10, class: g8rc }
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- { id: 11, class: g8rc }
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- { id: 12, class: g8rc }
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- { id: 13, class: g8rc }
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- { id: 14, class: g8rc }
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- { id: 15, class: g8rc_and_g8rc_nox0 }
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- { id: 16, class: g8rc_and_g8rc_nox0 }
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- { id: 17, class: g8rc }
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- { id: 18, class: g8rc }
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- { id: 19, class: g8rc }
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- { id: 20, class: g8rc }
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- { id: 21, class: g8rc }
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- { id: 22, class: g8rc }
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- { id: 23, class: g8rc }
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- { id: 24, class: g8rc }
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- { id: 25, class: crrc }
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- { id: 26, class: g8rc_and_g8rc_nox0 }
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- { id: 27, class: g8rc_and_g8rc_nox0 }
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liveins:
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- { reg: '$x3', virtual-reg: '%6' }
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- { reg: '$x4', virtual-reg: '%7' }
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- { reg: '$x5', virtual-reg: '%8' }
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- { reg: '$x6', virtual-reg: '%9' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 0
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offsetAdjustment: 0
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maxAlignment: 0
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adjustsStack: false
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hasCalls: false
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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body: |
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bb.0.top:
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successors: %bb.1.loop
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liveins: $x3, $x4, $x5, $x6
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%9 = COPY $x6
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%8 = COPY $x5
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%7 = COPY $x4
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%6 = COPY $x3
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%14 = COPY %9
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%13 = COPY %8
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%12 = COPY %7
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%11 = COPY %6
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%21 = LI8 128
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%23 = LI8 64
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bb.1.loop:
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successors: %bb.2.loop, %bb.4
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%0 = PHI %11, %bb.0.top, %4, %bb.3.loop
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%1 = PHI %12, %bb.0.top, %5, %bb.3.loop
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%2 = PHI %13, %bb.0.top, %4, %bb.3.loop
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%3 = PHI %14, %bb.0.top, %5, %bb.3.loop
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%15 = SUBFC8 %3, %1, implicit-def $carry
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%16 = SUBFE8 %2, %0, implicit-def dead $carry, implicit $carry
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%17 = ADDI8 %16, -1
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%18 = ADDI8 %15, -1
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%19 = ANDC8 killed %17, %16
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%20 = ANDC8 killed %18, %15
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%22 = CNTLZD killed %19
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%24 = CNTLZD killed %20
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%25 = CMPLDI %15, 0
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BCC 76, %25, %bb.2.loop
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; CHECK: SUBFC8o %3, %1, implicit-def $carry, implicit-def $cr0
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; CHECK: COPY killed $cr0
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; CHECK: BCC
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bb.4:
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successors: %bb.3.loop
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%27 = SUBF8 %24, %23
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B %bb.3.loop
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bb.2.loop:
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successors: %bb.3.loop
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%26 = SUBF8 %22, %21
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bb.3.loop:
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successors: %bb.1.loop
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%5 = PHI %26, %bb.2.loop, %27, %bb.4
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%4 = LI8 0
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B %bb.1.loop
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...
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