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April 22, 2017 21:12
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x86_64 clang suspection
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| .text | |
| .def __cxx_global_var_init; | |
| .scl 3; | |
| .type 32; | |
| .endef | |
| .p2align 4, 0x90 | |
| __cxx_global_var_init: # @__cxx_global_var_init | |
| .Ltmp0: | |
| .seh_proc __cxx_global_var_init | |
| # BB#0: | |
| subq $40, %rsp | |
| .Ltmp1: | |
| .seh_stackalloc 40 | |
| .Ltmp2: | |
| .seh_endprologue | |
| movabsq $_ZStL8__ioinit, %rcx | |
| callq _ZNSt8ios_base4InitC1Ev | |
| movabsq $_ZNSt8ios_base4InitD1Ev, %rcx | |
| movabsq $_ZStL8__ioinit, %rdx | |
| movabsq $__dso_handle, %r8 | |
| callq __cxa_atexit | |
| movl %eax, 36(%rsp) # 4-byte Spill | |
| addq $40, %rsp | |
| retq | |
| .seh_handlerdata | |
| .text | |
| .Ltmp3: | |
| .seh_endproc | |
| .def _Z1fe; | |
| .scl 2; | |
| .type 32; | |
| .endef | |
| .globl _Z1fe | |
| .p2align 4, 0x90 | |
| _Z1fe: # @_Z1fe | |
| .Ltmp4: | |
| .seh_proc _Z1fe | |
| # BB#0: | |
| subq $88, %rsp | |
| .Ltmp5: | |
| .seh_stackalloc 88 | |
| .Ltmp6: | |
| .seh_endprologue | |
| fldt 128(%rsp) | |
| fld %st(0) | |
| fstpt 64(%rsp) | |
| movq %rsp, %rax | |
| fstpt 32(%rax) | |
| movabsq $_ZSt4cout, %rcx | |
| callq _ZNSolsEe | |
| movabsq $_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_, %rdx | |
| movq %rax, %rcx | |
| callq _ZNSolsEPFRSoS_E | |
| movq %rax, 56(%rsp) # 8-byte Spill | |
| addq $88, %rsp | |
| retq | |
| .seh_handlerdata | |
| .text | |
| .Ltmp7: | |
| .seh_endproc | |
| .def main; | |
| .scl 2; | |
| .type 32; | |
| .endef | |
| .section .rdata,"dr" | |
| .p2align 2 | |
| LCPI2_0: | |
| .long 1103626240 # float 25 | |
| .text | |
| .globl main | |
| .p2align 4, 0x90 | |
| main: # @main | |
| .Ltmp8: | |
| .seh_proc main | |
| # BB#0: | |
| pushq %rbp | |
| .Ltmp9: | |
| .seh_pushreg 5 | |
| subq $80, %rsp | |
| .Ltmp10: | |
| .seh_stackalloc 80 | |
| leaq 80(%rsp), %rbp | |
| .Ltmp11: | |
| .seh_setframe 5, 80 | |
| .Ltmp12: | |
| .seh_endprologue | |
| callq __main | |
| movl $0, -4(%rbp) | |
| movabsq $LCPI2_0, %rax | |
| flds (%rax) | |
| fld %st(0) | |
| fstpt -32(%rbp) | |
| movq %rsp, %rax | |
| fstpt 32(%rax) | |
| callq _Z1fe | |
| xorl %eax, %eax | |
| addq $80, %rsp | |
| popq %rbp | |
| retq | |
| .seh_handlerdata | |
| .text | |
| .Ltmp13: | |
| .seh_endproc | |
| .def _GLOBAL__sub_I_a.bug.cpp; | |
| .scl 3; | |
| .type 32; | |
| .endef | |
| .p2align 4, 0x90 | |
| _GLOBAL__sub_I_a.bug.cpp: # @_GLOBAL__sub_I_a.bug.cpp | |
| .Ltmp14: | |
| .seh_proc _GLOBAL__sub_I_a.bug.cpp | |
| # BB#0: | |
| subq $40, %rsp | |
| .Ltmp15: | |
| .seh_stackalloc 40 | |
| .Ltmp16: | |
| .seh_endprologue | |
| callq __cxx_global_var_init | |
| nop | |
| addq $40, %rsp | |
| retq | |
| .seh_handlerdata | |
| .text | |
| .Ltmp17: | |
| .seh_endproc | |
| .lcomm _ZStL8__ioinit,1 # @_ZStL8__ioinit | |
| .section .ctors,"dw" | |
| .p2align 3 | |
| .quad _GLOBAL__sub_I_a.bug.cpp | |
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| #include <iostream> | |
| void f(long double v) { std::cout << v << std::endl; } | |
| int main(void) | |
| { | |
| long double d = 25; | |
| f(d); | |
| return 0; | |
| } |
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| .file "a.bug.cpp" | |
| .lcomm _ZStL8__ioinit,1,1 | |
| .text | |
| .globl _Z1fe | |
| .def _Z1fe; .scl 2; .type 32; .endef | |
| .seh_proc _Z1fe | |
| _Z1fe: | |
| .LFB1023: | |
| pushq %rbp | |
| .seh_pushreg %rbp | |
| pushq %rbx | |
| .seh_pushreg %rbx | |
| subq $72, %rsp | |
| .seh_stackalloc 72 | |
| leaq 128(%rsp), %rbp | |
| .seh_setframe %rbp, 128 | |
| .seh_endprologue | |
| movq %rcx, %rbx | |
| fldt (%rbx) | |
| fstpt -80(%rbp) | |
| fldt -80(%rbp) | |
| fstpt -96(%rbp) | |
| leaq -96(%rbp), %rax | |
| movq %rax, %rdx | |
| movq .refptr._ZSt4cout(%rip), %rcx | |
| call _ZNSolsEe | |
| movq .refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(%rip), %rdx | |
| movq %rax, %rcx | |
| call _ZNSolsEPFRSoS_E | |
| nop | |
| addq $72, %rsp | |
| popq %rbx | |
| popq %rbp | |
| ret | |
| .seh_endproc | |
| .def __main; .scl 2; .type 32; .endef | |
| .globl main | |
| .def main; .scl 2; .type 32; .endef | |
| .seh_proc main | |
| main: | |
| .LFB1024: | |
| pushq %rbp | |
| .seh_pushreg %rbp | |
| movq %rsp, %rbp | |
| .seh_setframe %rbp, 0 | |
| subq $64, %rsp | |
| .seh_stackalloc 64 | |
| .seh_endprologue | |
| call __main | |
| fldt .LC1(%rip) | |
| fstpt -16(%rbp) | |
| fldt -16(%rbp) | |
| fstpt -32(%rbp) | |
| leaq -32(%rbp), %rax | |
| movq %rax, %rcx | |
| call _Z1fe | |
| movl $0, %eax | |
| addq $64, %rsp | |
| popq %rbp | |
| ret | |
| .seh_endproc | |
| .def _Z41__static_initialization_and_destruction_0ii; .scl 3; .type 32; .endef | |
| .seh_proc _Z41__static_initialization_and_destruction_0ii | |
| _Z41__static_initialization_and_destruction_0ii: | |
| .LFB1031: | |
| pushq %rbp | |
| .seh_pushreg %rbp | |
| movq %rsp, %rbp | |
| .seh_setframe %rbp, 0 | |
| subq $32, %rsp | |
| .seh_stackalloc 32 | |
| .seh_endprologue | |
| movl %ecx, 16(%rbp) | |
| movl %edx, 24(%rbp) | |
| cmpl $1, 16(%rbp) | |
| jne .L6 | |
| cmpl $65535, 24(%rbp) | |
| jne .L6 | |
| leaq _ZStL8__ioinit(%rip), %rcx | |
| call _ZNSt8ios_base4InitC1Ev | |
| movq .refptr.__dso_handle(%rip), %r8 | |
| leaq _ZStL8__ioinit(%rip), %rdx | |
| movq .refptr._ZNSt8ios_base4InitD1Ev(%rip), %rcx | |
| call __cxa_atexit | |
| .L6: | |
| nop | |
| addq $32, %rsp | |
| popq %rbp | |
| ret | |
| .seh_endproc | |
| .def _GLOBAL__sub_I__Z1fe; .scl 3; .type 32; .endef | |
| .seh_proc _GLOBAL__sub_I__Z1fe | |
| _GLOBAL__sub_I__Z1fe: | |
| .LFB1032: | |
| pushq %rbp | |
| .seh_pushreg %rbp | |
| movq %rsp, %rbp | |
| .seh_setframe %rbp, 0 | |
| subq $32, %rsp | |
| .seh_stackalloc 32 | |
| .seh_endprologue | |
| movl $65535, %edx | |
| movl $1, %ecx | |
| call _Z41__static_initialization_and_destruction_0ii | |
| nop | |
| addq $32, %rsp | |
| popq %rbp | |
| ret | |
| .seh_endproc | |
| .section .ctors,"w" | |
| .align 8 | |
| .quad _GLOBAL__sub_I__Z1fe | |
| .section .rdata,"dr" | |
| .align 16 | |
| .LC1: | |
| .long 0 | |
| .long 3355443200 | |
| .long 16387 | |
| .long 0 | |
| .ident "GCC: (GNU) 5.4.0" | |
| .def _ZNSolsEe; .scl 2; .type 32; .endef | |
| .def _ZNSolsEPFRSoS_E; .scl 2; .type 32; .endef | |
| .def _ZNSt8ios_base4InitC1Ev; .scl 2; .type 32; .endef | |
| .def __cxa_atexit; .scl 2; .type 32; .endef | |
| .section .rdata$.refptr._ZNSt8ios_base4InitD1Ev, "dr" | |
| .globl .refptr._ZNSt8ios_base4InitD1Ev | |
| .linkonce discard | |
| .refptr._ZNSt8ios_base4InitD1Ev: | |
| .quad _ZNSt8ios_base4InitD1Ev | |
| .section .rdata$.refptr.__dso_handle, "dr" | |
| .globl .refptr.__dso_handle | |
| .linkonce discard | |
| .refptr.__dso_handle: | |
| .quad __dso_handle | |
| .section .rdata$.refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_, "dr" | |
| .globl .refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_ | |
| .linkonce discard | |
| .refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_: | |
| .quad _ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_ | |
| .section .rdata$.refptr._ZSt4cout, "dr" | |
| .globl .refptr._ZSt4cout | |
| .linkonce discard | |
| .refptr._ZSt4cout: | |
| .quad _ZSt4cout |
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