# 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 (s64) 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 (s8) 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 (s64) into %ir.p)
%8:gprc = LBZ 1, %1 :: (load (s8) 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 (s64) 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 (s64) 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 (s8) 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 (s64) into %ir.p)
; CHECK: %8:gprc = LBZ 1, %1 :: (load (s8) 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 (s64) into %ir.p)
; CHECK: %12:g8rc_and_g8rc_nox0 = COPY killed %3
; CHECK: B %bb.1
...