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d49cb60862
Summary: This catches malformed mir files which specify alignment as log2 instead of pow2. See https://reviews.llvm.org/D65945 for reference, This is patch is part of a series to introduce an Alignment type. See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html See this patch for the introduction of the type: https://reviews.llvm.org/D64790 Reviewers: courbet Subscribers: MatzeB, qcolombet, dschuff, arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67433 llvm-svn: 371608
92 lines
2.3 KiB
YAML
92 lines
2.3 KiB
YAML
# RUN: llc -march=mipsel -mcpu=mips32r6 -start-after=block-placement %s -o - | FileCheck %s
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# Check that empty blocks in the cfg don't cause the mips hazard scheduler to
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# crash and that the nop is inserted correctly.
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# CHECK: blezc
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# CHECK: nop
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# CHECK: # %bb.1:
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# CHECK: .insn
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# CHECK: # %bb.2:
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# CHECK: .insn
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# CHECK: # %bb.3:
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# CHECK: jal
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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:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64"
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declare i32 @k()
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declare void @f(i32)
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define void @l5() {
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entry:
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%call = tail call i32 @k()
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%cmp = icmp sgt i32 %call, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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tail call void @f(i32 signext 2)
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br label %if.end
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if.end: ; preds = %if.then, %entry
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ret void
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}
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---
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name: l5
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alignment: 4
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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tracksRegLiveness: true
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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: 24
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offsetAdjustment: 0
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 16
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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stack:
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- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$ra' }
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body: |
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bb.0.entry:
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successors: %bb.1.if.then(0x50000000), %bb.4.if.end(0x30000000)
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liveins: $ra
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$sp = ADDiu $sp, -24
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CFI_INSTRUCTION def_cfa_offset 24
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SW killed $ra, $sp, 20 :: (store 4 into %stack.0)
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CFI_INSTRUCTION offset $ra_64, -4
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JAL @k, csr_o32_fp64, implicit-def dead $ra, implicit-def $sp, implicit-def $v0
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BLEZ $v0, %bb.4.if.end, implicit-def $at
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bb.1.if.then:
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successors: %bb.2.if.then(0x80000000)
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bb.2.if.then:
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successors: %bb.3.if.then(0x80000000)
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bb.3.if.then:
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successors: %bb.4.if.end(0x80000000)
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$a0 = ADDiu $zero, 2
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JAL @f, csr_o32_fp64, implicit-def dead $ra, implicit killed $a0, implicit-def $sp
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bb.4.if.end:
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$ra = LW $sp, 20 :: (load 4 from %stack.0)
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$sp = ADDiu $sp, 24
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PseudoReturn undef $ra
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...
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