200 lines
12 KiB
Plaintext
200 lines
12 KiB
Plaintext
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# RUN: llc -mtriple=aarch64-linux-gnu %s -run-pass=aarch64-jump-tables -o - | FileCheck %s
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--- |
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define i32 @test_jumptable(i32 %in) {
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unreachable
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}
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define void @test_inline_asm_no_compress() { ret void }
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...
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---
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name: test_jumptable
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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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liveins:
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- { reg: '$w0' }
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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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jumpTable:
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kind: block-address
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entries:
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- id: 0
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blocks: [ '%bb.2', '%bb.3' ]
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- id: 1
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blocks: [ '%bb.4', '%bb.5' ]
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- id: 2
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blocks: [ '%bb.7' ]
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- id: 3
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blocks: [ '%bb.9' ]
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- id: 4
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blocks: [ '%bb.9' ]
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- id: 5
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blocks: [ '%bb.11' ]
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body: |
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bb.0 (%ir-block.0):
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liveins: $x8
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bb.1 (%ir-block.0):
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; CHECK-LABEL: body:
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; CHECK-LABEL: bb.1
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; CHECK: JumpTableDest8
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liveins: $x8
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.0
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BR killed $x10
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bb.2:
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; Last destination is 4 * 255 = 1020 bytes after first. Byte is OK.
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dead $xzr = SPACE 1020, undef $xzr
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bb.3:
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; CHECK-LABEL: bb.3
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; CHECK: JumpTableDest16
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.1
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BR killed $x10
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bb.4:
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; Last destination is 4 * 256 = 1024 bytes after first. Half needed.
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dead $xzr = SPACE 1024, undef $xzr
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bb.5:
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; CHECK-LABEL: bb.5
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; CHECK: JumpTableDest8
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.2
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BR killed $x10
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bb.6:
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; First destination is (2^20 - 4) after reference. Just reachable by ADR so can use compressed table.
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dead $xzr = SPACE 1048556, undef $xzr
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bb.7:
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; CHECK-LABEL: bb.7
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; CHECK: JumpTableDest32
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.3
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BR killed $x10
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bb.8:
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; First destination is 2^20 after reference. Compressed table cannot reach it.
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dead $xzr = SPACE 1048560, undef $xzr
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bb.9:
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; First destination is 2^20 before reference. Just within reach of ADR.
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dead $xzr = SPACE 1048576, undef $xzr
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bb.10:
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; CHECK-LABEL: bb.10
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; CHECK: JumpTableDest8
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.4
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BR killed $x10
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bb.11:
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; First destination is 2^20 before reference. Just within reach of ADR.
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dead $xzr = SPACE 1048580, undef $xzr
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bb.12:
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; CHECK-LABEL: bb.12
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; CHECK: JumpTableDest32
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early-clobber $x10, dead early-clobber $x11 = JumpTableDest32 undef killed $x9, undef killed $x8, %jump-table.5
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BR killed $x10
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...
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---
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name: test_inline_asm_no_compress
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alignment: 4
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tracksRegLiveness: true
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liveins:
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- { reg: '$w0' }
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- { reg: '$w1' }
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- { reg: '$w2' }
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frameInfo:
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maxAlignment: 1
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maxCallFrameSize: 0
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machineFunctionInfo:
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hasRedZone: false
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jumpTable:
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kind: label-difference32
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entries:
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- id: 0
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blocks: [ '%bb.2', '%bb.4', '%bb.5', '%bb.6', '%bb.7', '%bb.8' ]
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body: |
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bb.0:
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successors: %bb.3(0x12492492), %bb.1(0x6db6db6e)
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liveins: $w0, $w1, $w2
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dead $wzr = SUBSWri renamable $w0, 5, 0, implicit-def $nzcv
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Bcc 8, %bb.3, implicit $nzcv
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bb.1:
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successors: %bb.2, %bb.4, %bb.5, %bb.6, %bb.7, %bb.8
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liveins: $w0, $w1, $w2
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; We check that if there's an inline asm instruction in the jump table,
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; that we skip compression. This is due to not being able to rely on
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; finding the instruction size in some cases.
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; CHECK-LABEL: test_inline_asm_no_compress
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; CHECK-LABEL: bb.1
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; CHECK: JumpTableDest32
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renamable $w8 = ORRWrs $wzr, killed renamable $w0, 0, implicit-def $x8
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$x9 = ADRP target-flags(aarch64-page) %jump-table.0
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renamable $x9 = ADDXri $x9, target-flags(aarch64-pageoff, aarch64-nc) %jump-table.0, 0
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early-clobber renamable $x10, dead early-clobber renamable $x11 = JumpTableDest32 killed renamable $x9, killed renamable $x8, %jump-table.0
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BR killed renamable $x10
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bb.2:
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liveins: $w1, $w2
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INLINEASM &".byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09", 1 /* sideeffect attdialect */
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INLINEASM &".byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09.byte 0x1f,0x20,0x03,0xd5,0x1f,0x20,0x03,0xd5\0A\09", 1 /* sideeffect attdialect */
|
||
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$w0 = ADDWrs killed renamable $w2, killed renamable $w1, 0
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||
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RET undef $lr, implicit $w0
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||
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|
||
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bb.3:
|
||
|
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$w0 = MOVZWi 0, 0
|
||
|
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RET undef $lr, implicit $w0
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|
||
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bb.4:
|
||
|
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liveins: $w1, $w2
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||
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|
||
|
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renamable $w0 = nsw MADDWrrr killed renamable $w2, killed renamable $w1, $wzr
|
||
|
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RET undef $lr, implicit $w0
|
||
|
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|
||
|
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bb.5:
|
||
|
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liveins: $w1, $w2
|
||
|
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|
||
|
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$w0 = SUBWrs killed renamable $w1, killed renamable $w2, 0
|
||
|
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RET undef $lr, implicit $w0
|
||
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|
||
|
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bb.6:
|
||
|
|
liveins: $w1, $w2
|
||
|
|
|
||
|
|
$w0 = SUBWrs killed renamable $w2, killed renamable $w1, 0
|
||
|
|
RET undef $lr, implicit $w0
|
||
|
|
|
||
|
|
bb.7:
|
||
|
|
liveins: $w1, $w2
|
||
|
|
|
||
|
|
renamable $w0 = MADDWrrr killed renamable $w1, renamable $w1, killed renamable $w2
|
||
|
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RET undef $lr, implicit $w0
|
||
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|
|
||
|
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bb.8:
|
||
|
|
liveins: $w1, $w2
|
||
|
|
|
||
|
|
renamable $w8 = nsw MADDWrrr renamable $w2, renamable $w2, $wzr
|
||
|
|
renamable $w0 = MADDWrrr killed renamable $w8, killed renamable $w2, killed renamable $w1
|
||
|
|
RET undef $lr, implicit $w0
|
||
|
|
|
||
|
|
...
|