diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/late-tail-dup-computed-goto.mir')
| -rw-r--r-- | llvm/test/CodeGen/X86/late-tail-dup-computed-goto.mir | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/late-tail-dup-computed-goto.mir b/llvm/test/CodeGen/X86/late-tail-dup-computed-goto.mir new file mode 100644 index 0000000..e272e7e --- /dev/null +++ b/llvm/test/CodeGen/X86/late-tail-dup-computed-goto.mir @@ -0,0 +1,128 @@ +# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5 +# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=tailduplication -tail-dup-pred-size=1 -tail-dup-succ-size=1 %s -o - | FileCheck %s +# +# Check that only the computed gotos are duplicated aggressively. +# +--- | + @computed_goto.dispatch = constant [5 x ptr] [ptr null, ptr blockaddress(@computed_goto, %bb1), ptr blockaddress(@computed_goto, %bb2), ptr blockaddress(@computed_goto, %bb3), ptr blockaddress(@computed_goto, %bb4)] + declare i64 @f0() + declare i64 @f1() + declare i64 @f2() + declare i64 @f3() + declare i64 @f4() + declare i64 @f5() + define void @computed_goto() { + start: + ret void + bb1: + ret void + bb2: + ret void + bb3: + ret void + bb4: + ret void + } + define void @jump_table() { ret void } + define void @jump_table_pic() { ret void } +... +--- +name: computed_goto +alignment: 1 +exposesReturnsTwice: false +legalized: false +regBankSelected: false +selected: false +failedISel: false +tracksRegLiveness: true +body: | + ; CHECK-LABEL: name: computed_goto + ; CHECK: bb.0: + ; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f0, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + ; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64 = COPY $rax + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY]] + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]] + ; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.1.bb1 (ir-block-address-taken %ir-block.bb1): + ; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + ; CHECK-NEXT: [[COPY3:%[0-9]+]]:gr64 = COPY $rax + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY3]] + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]] + ; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.2.bb2 (ir-block-address-taken %ir-block.bb2): + ; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + ; CHECK-NEXT: [[COPY4:%[0-9]+]]:gr64 = COPY $rax + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY4]] + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]] + ; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.3.bb3 (ir-block-address-taken %ir-block.bb3): + ; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f3, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + ; CHECK-NEXT: [[COPY5:%[0-9]+]]:gr64 = COPY $rax + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY5]] + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]] + ; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.4.bb4 (ir-block-address-taken %ir-block.bb4): + ; CHECK-NEXT: successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @f4, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + ; CHECK-NEXT: [[COPY6:%[0-9]+]]:gr64 = COPY $rax + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gr64_nosp = COPY [[COPY6]] + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64_nosp = COPY [[COPY1]] + ; CHECK-NEXT: JMP64m $noreg, 8, [[COPY2]], @computed_goto.dispatch, $noreg + bb.0: + successors: %bb.5(0x80000000) + + CALL64pcrel32 target-flags(x86-plt) @f0, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + %0:gr64 = COPY $rax + %6:gr64_nosp = COPY %0 + JMP_1 %bb.5 + + bb.1.bb1 (ir-block-address-taken %ir-block.bb1): + successors: %bb.5(0x80000000) + + CALL64pcrel32 target-flags(x86-plt) @f1, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + %1:gr64 = COPY $rax + %6:gr64_nosp = COPY %1 + JMP_1 %bb.5 + + bb.2.bb2 (ir-block-address-taken %ir-block.bb2): + successors: %bb.5(0x80000000) + + CALL64pcrel32 target-flags(x86-plt) @f2, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + %2:gr64 = COPY $rax + %6:gr64_nosp = COPY %2 + JMP_1 %bb.5 + + bb.3.bb3 (ir-block-address-taken %ir-block.bb3): + successors: %bb.5(0x80000000) + + CALL64pcrel32 target-flags(x86-plt) @f3, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + %3:gr64 = COPY $rax + %6:gr64_nosp = COPY %3 + JMP_1 %bb.5 + + bb.4.bb4 (ir-block-address-taken %ir-block.bb4): + successors: %bb.5(0x80000000) + + CALL64pcrel32 target-flags(x86-plt) @f4, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit-def $rax + %4:gr64 = COPY $rax + %6:gr64_nosp = COPY %4 + + bb.5: + successors: %bb.1(0x20000000), %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000) + + %5:gr64_nosp = COPY %6 + JMP64m $noreg, 8, %5, @computed_goto.dispatch, $noreg +... |