diff options
author | Kartik Agaram <vc@akkartik.com> | 2020-11-05 00:51:15 -0800 |
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committer | Kartik Agaram <vc@akkartik.com> | 2020-11-05 00:51:15 -0800 |
commit | 686b87cc06de415c5ecdca75bb706cdc54c358da (patch) | |
tree | 10de25d9ef9fba53254b5daa2b6d1fd35ea6dcfd /apps/mu.subx | |
parent | cc356b35bf183823f6c78c9b9f3b5eeddfd5614c (diff) | |
download | mu-686b87cc06de415c5ecdca75bb706cdc54c358da.tar.gz |
7181 - type checks for 'address' instruction
Diffstat (limited to 'apps/mu.subx')
-rw-r--r-- | apps/mu.subx | 593 |
1 files changed, 593 insertions, 0 deletions
diff --git a/apps/mu.subx b/apps/mu.subx index 479a2808..e5cd2f58 100644 --- a/apps/mu.subx +++ b/apps/mu.subx @@ -7596,6 +7596,366 @@ test-compare-non-scalar: 5d/pop-to-ebp c3/return +test-address-with-no-inout: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x/eax: boolean <- address\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-with-no-inout: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt 'address' expects an inout" "F - test-address-with-no-inout: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-with-no-inout: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-with-multiple-inouts: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x/eax: boolean <- address 0, 0\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-with-multiple-inouts: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt 'address' must have just one inout" "F - test-address-with-multiple-inouts: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-with-multiple-inouts: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-with-no-output: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " address 0\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-with-no-output: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt 'address' expects an output" "F - test-address-with-no-output: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-with-no-output: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-with-multiple-outputs: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x/eax: boolean <- copy 0\n") + (write _test-input-stream " var y/ecx: boolean <- copy 0\n") + (write _test-input-stream " x, y <- address 0\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-with-multiple-outputs: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt 'address' must have just one output" "F - test-address-with-multiple-outputs: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-with-multiple-outputs: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +# silly but it works +test-address-of-deref: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x/eax: (addr int) <- copy 0\n") + (write _test-input-stream " var y/ecx: (addr int) <- address *x\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file Stderr 0) + (flush _test-output-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # not bothering checking output + (check-next-stream-line-equal _test-error-stream "" "F - test-address-of-deref: error message") + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-to-non-register: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x: (addr int)\n") + (write _test-input-stream " x <- address 0\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-to-non-register: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt address: output 'x' not in a register" "F - test-address-to-non-register: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-to-non-register: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-with-wrong-type: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + (clear-stream _test-error-stream) + (clear-stream $_test-error-buffered-file->buffer) + # var ed/edx: exit-descriptor = tailor-exit-descriptor(16) + 68/push 0/imm32 + 68/push 0/imm32 + 89/<- %edx 4/r32/esp + (tailor-exit-descriptor %edx 0x10) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x: int\n") + (write _test-input-stream " var y/eax: (addr boolean) <- address x\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx) + # registers except esp clobbered at this point + # restore ed + 89/<- %edx 4/r32/esp + (flush _test-output-buffered-file) + (flush _test-error-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # check output + (check-stream-equal _test-output-stream "" "F - test-address-with-wrong-type: output should be empty") + (check-next-stream-line-equal _test-error-stream "fn foo: stmt address: output 'y' cannot hold address of 'x'" "F - test-address-with-wrong-type: error message") + # check that stop(1) was called + (check-ints-equal *(edx+4) 2 "F - test-address-with-wrong-type: exit status") + # don't restore from ebp + 81 0/subop/add %esp 8/imm32 + # . epilogue + 5d/pop-to-ebp + c3/return + +test-address-with-right-type-for-array: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x: (array int 3)\n") + (write _test-input-stream " var y/eax: (addr array int) <- address x\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file Stderr 0) + (flush _test-output-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # no error + (check-next-stream-line-equal _test-error-stream "" "F - test-address-with-right-type-for-array: error message") + # don't bother checking output + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +test-address-with-right-type-for-stream: + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # setup + (clear-stream _test-input-stream) + (clear-stream $_test-input-buffered-file->buffer) + (clear-stream _test-output-stream) + (clear-stream $_test-output-buffered-file->buffer) + # + (write _test-input-stream "fn foo {\n") + (write _test-input-stream " var x: (stream int 3)\n") + (write _test-input-stream " var y/eax: (addr stream int) <- address x\n") + (write _test-input-stream "}\n") + # convert + (convert-mu _test-input-buffered-file _test-output-buffered-file Stderr 0) + (flush _test-output-buffered-file) +#? # dump _test-error-stream {{{ +#? (write 2 "^") +#? (write-stream 2 _test-error-stream) +#? (write 2 "$\n") +#? (rewind-stream _test-error-stream) +#? # }}} + # no error + (check-next-stream-line-equal _test-error-stream "" "F - test-address-with-right-type-for-stream: error message") + # don't bother checking output + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + test-get-with-wrong-field: # . prologue 55/push-ebp @@ -17942,8 +18302,241 @@ check-mu-address-stmt: # stmt: (addr stmt), fn: (addr function), err: (addr buf 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers + 50/push-eax + 51/push-ecx + 52/push-edx + 56/push-esi + 57/push-edi +$check-mu-address-stmt:get-output: + # esi = stmt + 8b/-> *(ebp+8) 6/r32/esi + # var output/edi: (addr stmt-var) = stmt->outputs + (lookup *(esi+0x14) *(esi+0x18)) # Stmt1-outputs Stmt1-outputs => eax + 89/<- %edi 0/r32/eax + # zero outputs + 3d/compare-eax-and 0/imm32 + 0f 84/jump-if-= $check-mu-address-stmt:error-no-output/disp32 + # > 1 output + (lookup *(edi+8) *(edi+0xc)) # Stmt-var-next Stmt-var-next => eax + 3d/compare-eax-and 0/imm32 + 0f 85/jump-if-!= $check-mu-address-stmt:error-too-many-outputs/disp32 +$check-mu-address-stmt:get-inout: + # var inout/esi: (addr stmt-var) = stmt->inouts + (lookup *(esi+0xc) *(esi+0x10)) # Stmt1-inouts Stmt1-inouts => eax + 89/<- %esi 0/r32/eax + # zero inouts + 3d/compare-eax-and 0/imm32 + 0f 84/jump-if-= $check-mu-address-stmt:error-no-inout/disp32 + # > 1 inout + (lookup *(esi+8) *(esi+0xc)) # Stmt-var-next Stmt-var-next => eax + 3d/compare-eax-and 0/imm32 + 0f 85/jump-if-!= $check-mu-address-stmt:error-too-many-inouts/disp32 +$check-mu-address-stmt:types: + # if output not in register, abort + (lookup *edi *(edi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *(eax+0x18) *(eax+0x1c)) # Var-register Var-register => eax + 3d/compare-eax-and 0/imm32 + 0f 84/jump-if-= $check-mu-address-stmt:error-output-not-in-register/disp32 + # var output-type/edx: (addr type-tree) = output->value->type + (lookup *edi *(edi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *(eax+8) *(eax+0xc)) # Var-type Var-type => eax + 89/<- %edx 0/r32/eax + # if output-type not an addr, abort + (is-mu-addr-type? %edx) # => eax + 3d/compare-eax-and 0/imm32/false + 0f 84/jump-if-= $check-mu-address-stmt:error-output-not-address/disp32 + # output-type = output-type->right + (lookup *(edx+0xc) *(edx+0x10)) # Type-tree-right Type-tree-right => eax + # if output-type->right is null, output-type = output-type->left + 81 7/subop/compare *(eax+0xc) 0/imm32 # Type-tree-right + { + 75/jump-if-!= break/disp8 + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + } + 89/<- %edx 0/r32/eax + # var inout-type/ecx: (addr type-tree) = inout->value->type + (lookup *esi *(esi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *(eax+8) *(eax+0xc)) # Var-type Var-type => eax + 89/<- %ecx 0/r32/eax + # if (inout->is-deref?) inout-type = inout-type->payload + 8b/-> *(esi+0x10) 0/r32/eax # Stmt-var-is-deref + 3d/compare-eax-and 0/imm32/false + { + 74/jump-if-= break/disp8 + (lookup *(ecx+0xc) *(ecx+0x10)) # Type-tree-right Type-tree-right => eax + # if inout-type->right is null, t = inout-type->left + 81 7/subop/compare *(eax+0xc) 0/imm32 # Type-tree-right + { + 75/jump-if-!= break/disp8 + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + } + 89/<- %ecx 0/r32/eax + } + # if (inout-type != output-type) abort + (type-equal-ignoring-capacity? %edx %ecx) # => eax + 3d/compare-eax-and 0/imm32 + 0f 84/jump-if-= $check-mu-address-stmt:error-type-mismatch/disp32 $check-mu-address-stmt:end: # . restore registers + 5f/pop-to-edi + 5e/pop-to-esi + 5a/pop-to-edx + 59/pop-to-ecx + 58/pop-to-eax + # . epilogue + 89/<- %esp 5/r32/ebp + 5d/pop-to-ebp + c3/return + +$check-mu-address-stmt:error-no-inout: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt 'address' expects an inout\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-too-many-inouts: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt 'address' must have just one inout\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-no-output: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt 'address' expects an output\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-output-not-in-register: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt address: output '") + (lookup *edi *(edi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *eax *(eax+4)) # Var-name Var-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) "' not in a register\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-too-many-outputs: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt 'address' must have just one output\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-output-not-address: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt address: output '") + (lookup *edi *(edi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *eax *(eax+4)) # Var-name Var-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) "' is not an addr\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +$check-mu-address-stmt:error-type-mismatch: + (write-buffered *(ebp+0x10) "fn ") + 8b/-> *(ebp+0xc) 0/r32/eax + (lookup *eax *(eax+4)) # Function-name Function-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) ": stmt address: output '") + (lookup *edi *(edi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *eax *(eax+4)) # Var-name Var-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) "' cannot hold address of '") + (lookup *esi *(esi+4)) # Stmt-var-value Stmt-var-value => eax + (lookup *eax *(eax+4)) # Var-name Var-name => eax + (write-buffered *(ebp+0x10) %eax) + (write-buffered *(ebp+0x10) "'\n") + (flush *(ebp+0x10)) + (stop *(ebp+0x14) 1) + # never gets here + +type-equal-ignoring-capacity?: # a: (addr type-tree), b: (addr type-tree) -> result/eax: boolean + # . prologue + 55/push-ebp + 89/<- %ebp 4/r32/esp + # . save registers + 51/push-ecx + 52/push-edx + 53/push-ebx + # var curr-a/ecx: (addr type-tree) = a + 8b/-> *(ebp+8) 1/r32/ecx + # var curr-b/ebx: (addr type-tree) = b + 8b/-> *(ebp+0xc) 3/r32/ebx + # if (curr-a->is-atom?) fall back to regular equality + 81 7/subop/compare *ecx 0/imm32/false # Type-tree-is-atom + 0f 85/jump-if-!= $type-equal-ignoring-capacity?:base-case/disp32 + # if (curr-a->left != curr-b->left) return false + (lookup *(ecx+4) *(ecx+8)) # Type-tree-left Type-tree-left => eax + 89/<- %edx 0/r32/eax + (lookup *(ebx+4) *(ebx+8)) # Type-tree-left Type-tree-left => eax + (type-equal? %edx %eax) # => eax + 3d/compare-eax-and 0/imm32/false + 0f 84/jump-if-= $type-equal-ignoring-capacity?:end/disp32 # eax switches meaning + # HERE + # if (curr-a->left == "array") curr-a = curr-a->element-type + { + (is-mu-array? %edx) # => eax + 3d/compare-eax-and 0/imm32/false + 75/jump-if-!= break/disp8 +$type-equal-ignoring-capacity?:array: + # curr-a = curr-a->right->left + (lookup *(ecx+0xc) *(ecx+0x10)) # Type-tree-right Type-tree-right => eax + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + 89/<- %ecx 0/r32/eax + # curr-b = curr-b->right->left + (lookup *(ebx+0xc) *(ebx+0x10)) # Type-tree-right Type-tree-right => eax + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + 89/<- %ebx 0/r32/eax + eb/jump $type-equal-ignoring-capacity?:base-case/disp8 + } + # if (curr-a->left == "stream") curr-a = curr-a->element-type + { + (is-mu-stream? %edx) # => eax + 3d/compare-eax-and 0/imm32/false + 75/jump-if-!= break/disp8 +$type-equal-ignoring-capacity?:stream: + # curr-a = curr-a->right->left + (lookup *(ecx+0xc) *(ecx+0x10)) # Type-tree-right Type-tree-right => eax + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + 89/<- %ecx 0/r32/eax + # curr-b = curr-b->right->left + (lookup *(ebx+0xc) *(ebx+0x10)) # Type-tree-right Type-tree-right => eax + (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax + 89/<- %ebx 0/r32/eax + eb/jump $type-equal-ignoring-capacity?:base-case/disp8 + } +$type-equal-ignoring-capacity?:base-case: + # return type-equal?(curr-a, curr-b) + (type-equal? %ecx %ebx) # => eax +$type-equal-ignoring-capacity?:end: + # . restore registers + 5b/pop-to-ebx + 5a/pop-to-edx + 59/pop-to-ecx # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp |