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llvm-mirror/test/CodeGen/PowerPC/livevars-crash2.mir
Kang Zhang bb99550f85 [MachineVerifier] Handle the PHI node for verifyLiveVariables()
Summary:
When doing MachineVerifier for LiveVariables, the MachineVerifier pass
will calculate the LiveVariables, and compares the result with the
result livevars pass gave. If they are different, verifyLiveVariables()
will give error.

But when we calculate the LiveVariables in MachineVerifier, we don't
consider the PHI node, while livevars considers.

This patch is to fix above bug.

Reviewed By: bjope

Differential Revision: https://reviews.llvm.org/D80274
2020-07-29 15:43:47 +00:00

220 lines
6.8 KiB
YAML

# RUN: llc -mtriple powerpc64le-unknown-linux-gnu %s -o - 2>&1 \
# RUN: -run-pass=livevars,phi-node-elimination -verify-machineinstrs | \
# RUN: FileCheck %s
--- |
define float @testfloatslt(float %c1, float %c2, float %c3, float %c4, float %a1, float %a2) {
entry:
%cmp1 = fcmp oeq float %c3, %c4
%cmp3tmp = fcmp oeq float %c1, %c2
%cmp3 = icmp slt i1 %cmp3tmp, %cmp1
%cond = select i1 %cmp3, float %a1, float %a2
ret float %cond
}
define signext i32 @select-i1-vs-i1(i8** nocapture dereferenceable(8) %p) #0 {
entry:
%.pre = load i8*, i8** %p, align 8
br label %loop
loop: ; preds = %loop, %if.then3, %entry
%0 = phi i8* [ %.pre, %entry ], [ %incdec.ptr4, %if.then3 ], [ %incdec.ptr, %loop ]
%1 = load i8, i8* %0, align 1
%tobool = icmp eq i8 %1, 0
%incdec.ptr = getelementptr inbounds i8, i8* %0, i64 1
store i8* %incdec.ptr, i8** %p, align 8
%2 = load i8, i8* %incdec.ptr, align 1
%tobool2 = icmp ne i8 %2, 0
%or.cond = and i1 %tobool, %tobool2
br i1 %or.cond, label %if.then3, label %loop
if.then3: ; preds = %loop
%incdec.ptr4 = getelementptr inbounds i8, i8* %0, i64 2
store i8* %incdec.ptr4, i8** %p, align 8
br label %loop
}
...
---
name: testfloatslt
tracksRegLiveness: true
registers:
- { id: 0, class: f4rc, preferred-register: '' }
- { id: 1, class: f4rc, preferred-register: '' }
- { id: 2, class: f4rc, preferred-register: '' }
- { id: 3, class: f4rc, preferred-register: '' }
- { id: 4, class: f4rc, preferred-register: '' }
- { id: 5, class: f4rc, preferred-register: '' }
- { id: 6, class: crrc, preferred-register: '' }
- { id: 7, class: crbitrc, preferred-register: '' }
- { id: 8, class: crrc, preferred-register: '' }
- { id: 9, class: crbitrc, preferred-register: '' }
- { id: 10, class: crbitrc, preferred-register: '' }
- { id: 11, class: f4rc, preferred-register: '' }
liveins:
- { reg: '$f1', virtual-reg: '%0' }
- { reg: '$f2', virtual-reg: '%1' }
- { reg: '$f3', virtual-reg: '%2' }
- { reg: '$f4', virtual-reg: '%3' }
- { reg: '$f5', virtual-reg: '%4' }
- { reg: '$f6', virtual-reg: '%5' }
body: |
bb.0.entry:
successors: %bb.2(0x20000000), %bb.1(0x60000000)
liveins: $f1, $f2, $f3, $f4, $f5, $f6
%5:f4rc = COPY killed $f6
%4:f4rc = COPY killed $f5
%3:f4rc = COPY killed $f4
%2:f4rc = COPY killed $f3
%1:f4rc = COPY killed $f2
%0:f4rc = COPY killed $f1
%6:crrc = FCMPUS killed %2, killed %3
%7:crbitrc = COPY killed %6.sub_eq
BC killed %7, %bb.2
B %bb.1
bb.1.entry:
successors: %bb.2(0x2aaaaaab), %bb.3(0x55555555)
%8:crrc = FCMPUS killed %0, killed %1
%9:crbitrc = COPY killed %8.sub_eq
BC killed %9, %bb.3
bb.2.entry:
successors: %bb.3(0x80000000)
bb.3.entry:
%11:f4rc = PHI %5, %bb.2, %4, %bb.1
$f1 = COPY killed %11
BLR8 implicit $lr8, implicit $rm, implicit killed $f1
...
---
name: select-i1-vs-i1
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
registers:
- { id: 0, class: g8rc, preferred-register: '' }
- { id: 1, class: g8rc_and_g8rc_nox0, preferred-register: '' }
- { id: 2, class: g8rc, preferred-register: '' }
- { id: 3, class: g8rc, preferred-register: '' }
- { id: 4, class: g8rc_and_g8rc_nox0, preferred-register: '' }
- { id: 5, class: gprc, preferred-register: '' }
- { id: 6, class: crrc, preferred-register: '' }
- { id: 7, class: crbitrc, preferred-register: '' }
- { id: 8, class: gprc, preferred-register: '' }
- { id: 9, class: crrc, preferred-register: '' }
- { id: 10, class: crbitrc, preferred-register: '' }
- { id: 11, class: crbitrc, preferred-register: '' }
liveins:
- { reg: '$x3', virtual-reg: '%4' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack: []
callSites: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $x3
%4:g8rc_and_g8rc_nox0 = COPY killed $x3
%0:g8rc = LD 0, %4 :: (dereferenceable load 8 from %ir.p)
bb.1.loop:
successors: %bb.1(0x20000000), %bb.2(0x60000000)
%1:g8rc_and_g8rc_nox0 = PHI %0, %bb.0, %2, %bb.1, %3, %bb.3, %2, %bb.2
%5:gprc = LBZ 0, %1 :: (load 1 from %ir.0)
%6:crrc = CMPWI killed %5, 0
%7:crbitrc = COPY killed %6.sub_eq
%2:g8rc = nuw ADDI8 %1, 1
STD %2, 0, %4 :: (store 8 into %ir.p)
%8:gprc = LBZ 1, %1 :: (load 1 from %ir.incdec.ptr)
BCn killed %7, %bb.1
B %bb.2
bb.2.loop:
successors: %bb.3(0x55555555), %bb.1(0x2aaaaaab)
%9:crrc = CMPWI killed %8, 0
%10:crbitrc = COPY killed %9.sub_eq
BC killed %10, %bb.1
B %bb.3
bb.3.if.then3:
successors: %bb.1(0x80000000)
%3:g8rc = nuw ADDI8 killed %1, 2
STD %3, 0, %4 :: (store 8 into %ir.p)
B %bb.1
; CHECK-LABEL: name: testfloatslt
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $x3
; CHECK: %4:g8rc_and_g8rc_nox0 = COPY killed $x3
; CHECK: %0:g8rc = LD 0, %4 :: (dereferenceable load 8 from %ir.p)
; CHECK: %12:g8rc_and_g8rc_nox0 = COPY killed %0
; CHECK: bb.1.loop:
; CHECK: successors: %bb.1(0x20000000), %bb.2(0x60000000)
; CHECK: %1:g8rc_and_g8rc_nox0 = COPY killed %12
; CHECK: %5:gprc = LBZ 0, %1 :: (load 1 from %ir.0)
; CHECK: %6:crrc = CMPWI killed %5, 0
; CEHCK: %7:crbitrc = COPY killed %6.sub_eq
; CHECK: %2:g8rc = nuw ADDI8 %1, 1
; CHECK: STD %2, 0, %4 :: (store 8 into %ir.p)
; CHECK: %8:gprc = LBZ 1, %1 :: (load 1 from %ir.incdec.ptr)
; CHECK: %12:g8rc_and_g8rc_nox0 = COPY %2
; CHECK: BCn killed %7, %bb.1
; CHECK: B %bb.2
; CHECK: bb.2.loop:
; CHECK: successors: %bb.3(0x55555555), %bb.1(0x2aaaaaab)
; CHECK: %9:crrc = CMPWI killed %8, 0
; CHECK: %10:crbitrc = COPY killed %9.sub_eq
; CHECK: %12:g8rc_and_g8rc_nox0 = COPY killed %2
; CHECK: BC killed %10, %bb.1
; CHECK: B %bb.3
; CHECK: bb.3.if.then3:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: %3:g8rc = nuw ADDI8 killed %1, 2
; CHECK: STD %3, 0, %4 :: (store 8 into %ir.p)
; CHECK: %12:g8rc_and_g8rc_nox0 = COPY killed %3
; CHECK: B %bb.1
...