| # REQUIRES: asserts |
| # RUN: llc -run-pass arm-cp-islands %s -o - | FileCheck %s |
| # |
| # This is a reduced test made to expose a bug in |
| # ARMConstantIslandPass in Thumb1 mode, see PR36658. |
| |
| # Verify optimized JT code uses TBB instructions. |
| # CHECK-LABEL: bb.7.entry: |
| # CHECK: tTBB_JT $pc, killed $r2, %jump-table.1, 0 |
| # CHECK-LABEL: bb.8: |
| # CHECK: JUMPTABLE_TBB 0, %jump-table.1, 44 |
| |
| # CHECK-LABEL: bb.11.entry: |
| # CHECK: $r1 = tMOVSr $r0, implicit-def dead $cpsr |
| # CHECK: tTBB_JT $pc, killed $r2, %jump-table.0, 1 |
| # CHECK-LABEL: bb.12: |
| # CHECK: JUMPTABLE_TBB 1, %jump-table.0, 44 |
| |
| --- | |
| ; ModuleID = 'PR36658.ll' |
| source_filename = "PR36658.ll" |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv5e-none-linux-gnueabi" |
| |
| declare i32 @foo1(...) |
| |
| declare i32 @foo2(i32) |
| |
| declare i32 @foo3(i32*) |
| |
| ; Function Attrs: nounwind optsize |
| define internal fastcc i32 @foo4(i32* nocapture %ignore_ptr) #0 { |
| entry: |
| %call = tail call i32 @foo3(i32* undef) |
| switch i32 %call, label %sw.epilog [ |
| i32 120, label %sw.bb |
| i32 48, label %sw.bb73 |
| i32 49, label %sw.bb73 |
| i32 50, label %sw.bb73 |
| i32 51, label %sw.bb73 |
| i32 52, label %sw.bb73 |
| i32 53, label %sw.bb73 |
| i32 54, label %sw.bb73 |
| i32 55, label %sw.bb73 |
| i32 92, label %cleanup |
| i32 39, label %cleanup |
| i32 34, label %cleanup |
| i32 10, label %sw.bb91 |
| i32 110, label %sw.bb93 |
| i32 116, label %sw.bb94 |
| i32 114, label %sw.bb95 |
| i32 102, label %sw.bb96 |
| i32 98, label %sw.bb97 |
| i32 97, label %sw.bb98 |
| i32 118, label %sw.bb106 |
| i32 101, label %sw.bb107 |
| i32 69, label %sw.bb107 |
| i32 63, label %cleanup |
| ] |
| |
| sw.bb: ; preds = %entry |
| br label %while.cond |
| |
| while.cond: ; preds = %while.cond, %sw.bb |
| %call5 = tail call i32 @foo3(i32* null) |
| br label %while.cond |
| |
| sw.bb73: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry |
| %0 = and i32 %call, -8 |
| %1 = icmp eq i32 %0, 48 |
| br i1 %1, label %while.body83.preheader, label %while.end88 |
| |
| while.body83.preheader: ; preds = %sw.bb73 |
| br label %while.body83 |
| |
| while.body83: ; preds = %while.body83.preheader, %while.body83 |
| %call87 = tail call i32 @foo3(i32* null) |
| br label %while.body83 |
| |
| while.end88: ; preds = %sw.bb73 |
| %call89 = tail call i32 @foo2(i32 %call) |
| unreachable |
| |
| sw.bb91: ; preds = %entry |
| store i32 1, i32* %ignore_ptr, align 4 |
| br label %cleanup |
| |
| sw.bb93: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb94: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb95: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb96: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb97: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb98: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb106: ; preds = %entry |
| br label %cleanup |
| |
| sw.bb107: ; preds = %entry, %entry |
| br i1 undef, label %cleanup, label %if.then109 |
| |
| if.then109: ; preds = %sw.bb107 |
| %call110 = tail call i32 bitcast (i32 (...)* @foo1 to i32 (i8*, i32)*)(i8* undef, i32 %call) |
| unreachable |
| |
| sw.epilog: ; preds = %entry |
| %call.off = add i32 %call, -32 |
| unreachable |
| |
| cleanup: ; preds = %sw.bb107, %sw.bb106, %sw.bb98, %sw.bb97, %sw.bb96, %sw.bb95, %sw.bb94, %sw.bb93, %sw.bb91, %entry, %entry, %entry, %entry |
| %retval.0 = phi i32 [ 11, %sw.bb106 ], [ 7, %sw.bb98 ], [ 8, %sw.bb97 ], [ 12, %sw.bb96 ], [ 13, %sw.bb95 ], [ 9, %sw.bb94 ], [ 10, %sw.bb93 ], [ 0, %sw.bb91 ], [ %call, %entry ], [ %call, %entry ], [ %call, %entry ], [ 27, %sw.bb107 ], [ %call, %entry ] |
| ret i32 %retval.0 |
| } |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.stackprotector(i8*, i8**) #1 |
| |
| attributes #0 = { nounwind optsize } |
| attributes #1 = { nounwind } |
| |
| ... |
| --- |
| name: foo4 |
| alignment: 1 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r0' } |
| frameInfo: |
| stackSize: 8 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$lr', callee-saved-restored: false } |
| - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$r4' } |
| jumpTable: |
| kind: inline |
| entries: |
| - id: 0 |
| blocks: [ '%bb.28', '%bb.26', '%bb.26', '%bb.26', '%bb.26', |
| '%bb.24', '%bb.23', '%bb.26', '%bb.26', '%bb.12', |
| '%bb.22' ] |
| - id: 1 |
| blocks: [ '%bb.19', '%bb.26', '%bb.26', '%bb.26', '%bb.21', |
| '%bb.26', '%bb.20', '%bb.26', '%bb.25', '%bb.26', |
| '%bb.15' ] |
| body: | |
| bb.0.entry: |
| successors: %bb.1(0x42c8590b), %bb.9(0x3d37a6f5) |
| liveins: $r0, $r4, $lr |
| |
| frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| frame-setup CFI_INSTRUCTION offset $r4, -8 |
| $r4 = tMOVSr $r0, implicit-def dead $cpsr |
| tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit undef $r0, implicit-def $sp, implicit-def $r0 |
| $r1 = tMOVSr $r0, implicit-def dead $cpsr |
| tCMPi8 $r0, 68, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.9, 12, killed $cpsr |
| |
| bb.1.entry: |
| successors: %bb.2(0x20000000), %bb.7(0x60000000) |
| liveins: $r0, $r1, $r4 |
| |
| tCMPi8 renamable $r1, 47, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.2, 13, killed $cpsr |
| |
| bb.7.entry: |
| successors: %bb.16(0x71c71c72), %bb.8(0x0e38e38e) |
| liveins: $r0, $r1 |
| |
| $r2 = tMOVSr $r1, implicit-def dead $cpsr |
| renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 48, 14, $noreg |
| tCMPi8 killed renamable $r2, 8, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.8, 2, killed $cpsr |
| |
| bb.16.sw.bb73: |
| successors: %bb.17(0x7fffffff), %bb.18(0x00000001) |
| liveins: $r0, $r1 |
| |
| renamable $r2, dead $cpsr = tMOVi8 7, 14, $noreg |
| renamable $r1, dead $cpsr = tBIC killed renamable $r1, killed renamable $r2, 14, $noreg |
| tCMPi8 killed renamable $r1, 48, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.18, 1, killed $cpsr |
| |
| bb.17.while.body83: |
| renamable $r0, dead $cpsr = tMOVi8 0, 14, $noreg |
| tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0 |
| tB %bb.17, 14, $noreg |
| |
| bb.9.entry: |
| successors: %bb.10(0x45d1745d), %bb.29(0x3a2e8ba3) |
| liveins: $r0, $r1 |
| |
| $r2 = tMOVSr $r1, implicit-def dead $cpsr |
| renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 92, 14, $noreg |
| tCMPi8 renamable $r2, 10, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.29, 9, killed $cpsr |
| |
| bb.10.entry: |
| successors: %bb.11(0x15555555), %bb.14(0x6aaaaaab) |
| liveins: $r0, $r1 |
| |
| $r2 = tMOVSr $r1, implicit-def dead $cpsr |
| renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 110, 14, $noreg |
| tCMPi8 renamable $r2, 10, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.11, 8, killed $cpsr |
| |
| bb.14.entry: |
| successors: %bb.19(0x1999999a), %bb.26(0x00000000), %bb.21(0x1999999a), %bb.20(0x1999999a), %bb.25(0x1999999a), %bb.15(0x1999999a) |
| liveins: $r2 |
| |
| renamable $r0, dead $cpsr = tLSLri killed renamable $r2, 2, 14, $noreg |
| renamable $r1 = tLEApcrelJT %jump-table.1, 14, $noreg |
| renamable $r0 = tLDRr killed renamable $r1, killed renamable $r0, 14, $noreg :: (load 4 from jump-table) |
| tBR_JTr killed renamable $r0, %jump-table.1 |
| |
| bb.19.sw.bb93: |
| renamable $r1, dead $cpsr = tMOVi8 10, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.15.while.cond: |
| renamable $r0, dead $cpsr = tMOVi8 0, 14, $noreg |
| tBL 14, $noreg, @foo3, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0 |
| tB %bb.15, 14, $noreg |
| |
| bb.29.entry: |
| successors: %bb.28(0x1999999a), %bb.26(0x00000000), %bb.24(0x1999999a), %bb.23(0x1999999a), %bb.12(0x1999999a), %bb.22(0x1999999a) |
| liveins: $r0, $r2 |
| |
| renamable $r1, dead $cpsr = tLSLri killed renamable $r2, 2, 14, $noreg |
| renamable $r2 = tLEApcrelJT %jump-table.0, 14, $noreg |
| renamable $r2 = tLDRr killed renamable $r2, killed renamable $r1, 14, $noreg :: (load 4 from jump-table) |
| $r1 = tMOVSr $r0, implicit-def dead $cpsr |
| tBR_JTr killed renamable $r2, %jump-table.0 |
| |
| bb.24.sw.bb98: |
| renamable $r1, dead $cpsr = tMOVi8 7, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.2.entry: |
| successors: %bb.27(0x2aaaaaab), %bb.3(0x55555555) |
| liveins: $r0, $r1, $r4 |
| |
| tCMPi8 renamable $r1, 10, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.27, 0, killed $cpsr |
| |
| bb.3.entry: |
| successors: %bb.4, %bb.5 |
| liveins: $r0, $r1 |
| |
| tCMPi8 renamable $r1, 34, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.5, 1, killed $cpsr |
| |
| bb.4: |
| liveins: $r0 |
| |
| $r1 = tMOVSr killed $r0, implicit-def dead $cpsr |
| tB %bb.28, 14, $noreg |
| |
| bb.25.sw.bb106: |
| renamable $r1, dead $cpsr = tMOVi8 11, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.23.sw.bb97: |
| renamable $r1, dead $cpsr = tMOVi8 8, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.27.sw.bb91: |
| liveins: $r4 |
| |
| renamable $r0, dead $cpsr = tMOVi8 1, 14, $noreg |
| tSTRi killed renamable $r0, killed renamable $r4, 0, 14, $noreg :: (store 4 into %ir.ignore_ptr) |
| renamable $r1, dead $cpsr = tMOVi8 0, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.21.sw.bb95: |
| renamable $r1, dead $cpsr = tMOVi8 13, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.20.sw.bb94: |
| renamable $r1, dead $cpsr = tMOVi8 9, 14, $noreg |
| tB %bb.28, 14, $noreg |
| |
| bb.5.entry: |
| liveins: $r0, $r1 |
| |
| tCMPi8 killed renamable $r1, 39, 14, $noreg, implicit-def $cpsr |
| tB %bb.6, 14, $noreg |
| |
| bb.11.entry: |
| successors: %bb.12(0x80000000), %bb.26(0x00000000) |
| liveins: $r0, $r1 |
| |
| tCMPi8 killed renamable $r1, 69, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.26, 1, killed $cpsr |
| |
| bb.12.sw.bb107: |
| successors: %bb.28(0x7fffffff), %bb.13(0x00000001) |
| liveins: $r0 |
| |
| renamable $r1, dead $cpsr = tMOVi8 27, 14, $noreg |
| renamable $r2, dead $cpsr = tMOVi8 0, 14, $noreg |
| tCMPi8 killed renamable $r2, 0, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.28, 1, killed $cpsr |
| |
| bb.13.if.then109: |
| successors: |
| liveins: $r0 |
| |
| $r1 = tMOVSr killed $r0, implicit-def dead $cpsr |
| tBL 14, $noreg, @foo1, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit undef $r0, implicit $r1, implicit-def $sp, implicit-def dead $r0 |
| |
| bb.8.entry: |
| liveins: $r0, $r1 |
| |
| tCMPi8 killed renamable $r1, 63, 14, $noreg, implicit-def $cpsr |
| |
| bb.6.entry: |
| successors: %bb.28(0x80000000), %bb.26(0x00000000) |
| liveins: $cpsr, $r0 |
| |
| tPUSH 14, $noreg, killed $r0, implicit-def $sp, implicit $sp |
| tPOP 14, $noreg, def $r1, implicit-def $sp, implicit $sp |
| tBcc %bb.28, 0, killed $cpsr |
| |
| bb.26.sw.epilog: |
| successors: |
| |
| |
| bb.22.sw.bb96: |
| renamable $r1, dead $cpsr = tMOVi8 12, 14, $noreg |
| |
| bb.28.cleanup: |
| liveins: $r1 |
| |
| $r0 = tMOVSr killed $r1, implicit-def dead $cpsr |
| tPOP_RET 14, $noreg, def $r4, def $pc, implicit-def $sp, implicit $sp, implicit $r0 |
| |
| bb.18.while.end88: |
| liveins: $r0 |
| |
| tBL 14, $noreg, @foo2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit-def $sp, implicit-def dead $r0 |
| |
| ... |
