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llvm-project/llvm/test/CodeGen/PowerPC/block-placement.mir
Philip Reames 4d629f9744
[MIR] Remove std::variant from multiple save/restore point handling [nfc] (#153226) 
In review of bbde6b, I had originally proposed that we support the
legacy text format. As review evolved, it bacame clear this had been a
bad idea (too much complexity), but in order to let that patch finally
move forward, I approved the change with the variant. This change undoes
the variant, and updates all the tests to just use the array form.
2025-08-12 11:23:05 -07:00

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# RUN: llc -verify-machineinstrs -mcpu=pwr9 -mtriple powerpc64le-unknown-linux-gnu \
# RUN: -run-pass=block-placement -o - %s | FileCheck %s
--- |
; ModuleID = 'block-placement.ll'
source_filename = "block-placement.ll"
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
%"class.xercesc_2_7::HashXMLCh" = type { %"class.xercesc_2_7::HashBase" }
%"class.xercesc_2_7::HashBase" = type { ptr }
define dso_local zeroext i1 @_ZN11xercesc_2_79HashXMLCh6equalsEPKvS2_(ptr nocapture readnone %this, ptr readonly %key1, ptr readonly %key2) unnamed_addr #0 {
entry:
%cmp.i = icmp eq ptr %key1, null
%cmp1.i = icmp eq ptr %key2, null
%or.cond.i = or i1 %cmp.i, %cmp1.i
br i1 %or.cond.i, label %if.then.i, label %while.cond.preheader.i
while.cond.preheader.i: ; preds = %entry
%0 = bitcast ptr %key2 to ptr
%1 = bitcast ptr %key1 to ptr
%2 = load i16, ptr %1, align 2
%3 = load i16, ptr %0, align 2
%cmp926.i = icmp eq i16 %2, %3
br i1 %cmp926.i, label %while.body.i.preheader, label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit
while.body.i.preheader: ; preds = %while.cond.preheader.i
%scevgep = getelementptr i8, ptr %key2, i64 2
%scevgep4 = getelementptr i8, ptr %key1, i64 2
br label %while.body.i
if.then.i: ; preds = %entry
br i1 %cmp.i, label %lor.lhs.false3.i, label %land.lhs.true.i
land.lhs.true.i: ; preds = %if.then.i
%4 = bitcast ptr %key1 to ptr
%5 = load i16, ptr %4, align 2
%tobool.i = icmp eq i16 %5, 0
br i1 %tobool.i, label %lor.lhs.false3.i, label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit
lor.lhs.false3.i: ; preds = %land.lhs.true.i, %if.then.i
br i1 %cmp1.i, label %if.else.i, label %land.lhs.true5.i
land.lhs.true5.i: ; preds = %lor.lhs.false3.i
%6 = bitcast ptr %key2 to ptr
%7 = load i16, ptr %6, align 2
%tobool6.i = icmp eq i16 %7, 0
br i1 %tobool6.i, label %if.else.i, label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit
if.else.i: ; preds = %land.lhs.true5.i, %lor.lhs.false3.i
br label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit
while.body.i: ; preds = %while.body.i.preheader, %if.end12.i
%lsr.iv5 = phi ptr [ %scevgep4, %while.body.i.preheader ], [ %scevgep6, %if.end12.i ]
%lsr.iv = phi ptr [ %scevgep, %while.body.i.preheader ], [ %scevgep2, %if.end12.i ]
%8 = phi i16 [ %15, %if.end12.i ], [ %2, %while.body.i.preheader ]
%9 = phi ptr [ %key1, %while.body.i.preheader ], [ %13, %if.end12.i ]
%10 = phi ptr [ %key2, %while.body.i.preheader ], [ %11, %if.end12.i ]
%11 = getelementptr i8, ptr %10, i64 2
%12 = bitcast ptr %11 to ptr
%13 = getelementptr i8, ptr %9, i64 2
%14 = bitcast ptr %13 to ptr
%tobool10.i = icmp eq i16 %8, 0
br i1 %tobool10.i, label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit, label %if.end12.i
if.end12.i: ; preds = %while.body.i
%15 = load i16, ptr %14, align 2
%16 = load i16, ptr %12, align 2
%cmp9.i = icmp eq i16 %15, %16
%scevgep2 = getelementptr i8, ptr %lsr.iv, i64 2
%scevgep6 = getelementptr i8, ptr %lsr.iv5, i64 2
br i1 %cmp9.i, label %while.body.i, label %_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit
_ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit: ; preds = %if.end12.i, %while.body.i, %if.else.i, %land.lhs.true5.i, %land.lhs.true.i, %while.cond.preheader.i
%retval.0.i1 = phi i64 [ 1, %if.else.i ], [ 0, %land.lhs.true.i ], [ 0, %land.lhs.true5.i ], [ 0, %while.cond.preheader.i ], [ 0, %if.end12.i ], [ 1, %while.body.i ]
%backToBool = trunc i64 %retval.0.i1 to i1
ret i1 %backToBool
}
attributes #0 = { "target-cpu"="pwr9" }
...
---
name: _ZN11xercesc_2_79HashXMLCh6equalsEPKvS2_
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
registers: []
liveins:
- { reg: '$x4', virtual-reg: '' }
- { reg: '$x5', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: []
restorePoint: []
fixedStack: []
stack: []
callSites: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
successors: %bb.5(0x40000000), %bb.1(0x40000000)
liveins: $x4, $x5
renamable $cr1 = CMPDI renamable $x4, 0
renamable $cr0 = CMPDI renamable $x5, 0
renamable $cr5lt = CROR renamable $cr1eq, renamable $cr0eq
BC killed renamable $cr5lt, %bb.5
bb.1.while.cond.preheader.i:
successors: %bb.2(0x40000000), %bb.11(0x40000000)
liveins: $x4, $x5
renamable $r8 = LHZ 0, renamable $x4 :: (load (s16) from %ir.1)
renamable $r6 = LHZ 0, renamable $x5 :: (load (s16) from %ir.0)
renamable $x3 = LI8 0
renamable $cr0 = CMPLW renamable $r8, killed renamable $r6
BCC 68, killed renamable $cr0, %bb.11
bb.2.while.body.i.preheader:
successors: %bb.3(0x80000000)
liveins: $r8, $x3, $x4, $x5
renamable $x6 = ADDI8 renamable $x5, 2
renamable $x7 = ADDI8 renamable $x4, 2
bb.3.while.body.i:
successors: %bb.4(0x04000000), %bb.10(0x7c000000)
liveins: $r8, $x3, $x4, $x5, $x6, $x7
dead renamable $r8 = ANDI_rec killed renamable $r8, 65535, implicit-def $cr0
BCC 68, killed renamable $cr0, %bb.10
bb.4:
renamable $x3 = LI8 1
BLR8 implicit $lr8, implicit $rm, implicit killed $x3
bb.5.if.then.i:
successors: %bb.7(0x30000000), %bb.6(0x50000000)
liveins: $cr0, $cr1, $x4, $x5
BC killed renamable $cr1eq, %bb.7
bb.6.land.lhs.true.i:
successors: %bb.7(0x30000000), %bb.11(0x50000000)
liveins: $cr0, $x4, $x5
renamable $r4 = LHZ 0, killed renamable $x4 :: (load (s16) from %ir.4)
renamable $x3 = LI8 0
renamable $cr1 = CMPLWI killed renamable $r4, 0
BCC 68, killed renamable $cr1, %bb.11
bb.7.lor.lhs.false3.i:
successors: %bb.9(0x30000000), %bb.8(0x50000000)
liveins: $cr0, $x5
BC killed renamable $cr0eq, %bb.9
bb.8.land.lhs.true5.i:
successors: %bb.9(0x80000000)
liveins: $x5
renamable $r4 = LHZ 0, killed renamable $x5 :: (load (s16) from %ir.6)
renamable $x3 = LI8 0
renamable $cr0 = CMPLWI killed renamable $r4, 0
BCCLR 68, killed renamable $cr0, implicit $lr, implicit $rm, implicit killed $x3
bb.9.if.else.i:
renamable $x3 = LI8 1
BLR8 implicit $lr8, implicit $rm, implicit killed $x3
bb.10.if.end12.i:
successors: %bb.3(0x7c000000), %bb.11(0x04000000)
liveins: $x3, $x4, $x5, $x6, $x7
renamable $x5 = ADDI8 killed renamable $x5, 2
renamable $x4 = ADDI8 killed renamable $x4, 2
renamable $r8 = LHZ 0, renamable $x4 :: (load (s16) from %ir.14)
renamable $r9 = LHZ 0, renamable $x5 :: (load (s16) from %ir.12)
renamable $x6 = ADDI8 killed renamable $x6, 2
renamable $x7 = ADDI8 killed renamable $x7, 2
renamable $cr0 = CMPLW renamable $r8, killed renamable $r9
BCC 76, killed renamable $cr0, %bb.3
bb.11._ZN11xercesc_2_79XMLString6equalsEPKtS2_.exit:
liveins: $x3
BLR8 implicit $lr8, implicit $rm, implicit killed $x3
; CHECK: bb.5.if.else.i:
; CHECK: successors: %bb.11(0x80000000)
; CHECK: bb.11:
; CHECK: renamable $x3 = LI8 1
; CHECK-NEXT: BLR8 implicit $lr8, implicit $rm, implicit killed $x3
; CHECK: bb.8.while.body.i (align 16):
; CHECK: successors: %bb.11(0x04000000), %bb.9(0x7c000000)
; CHECK: BCC 76, killed renamable $cr0, %bb.11
...
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