Play more with strange bit sizes
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10
C/strange_size/i65.c
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10
C/strange_size/i65.c
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#include <stdio.h>
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#include <stdint.h>
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int main(int argc, char **argv) {
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uint64_t i = (uint64_t)(-1LL);
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uint64_t j = (uint64_t)(-1LL);
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uint64_t k = i + j;
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printf("%lu + %lu = %lu\n", i, j, k);
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return 0;
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}
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46
C/strange_size/i65.s
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46
C/strange_size/i65.s
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; ModuleID = 'i65.c'
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source_filename = "i65.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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@.str = private unnamed_addr constant [17 x i8] c"%lu + %lu = %lu\0A\00", align 1
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; Function Attrs: noinline nounwind optnone sspstrong uwtable
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define dso_local i32 @main(i32, i8**) #0 {
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%3 = alloca i32, align 4
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%4 = alloca i32, align 4
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%5 = alloca i8**, align 8
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%6 = alloca i65, align 8
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%7 = alloca i65, align 8
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%8 = alloca i65, align 8
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store i32 0, i32* %3, align 4
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store i32 %0, i32* %4, align 4
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store i8** %1, i8*** %5, align 8
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store i65 -1, i65* %6, align 8
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store i65 -1, i65* %7, align 8
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%9 = load i65, i65* %6, align 8
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%10 = load i65, i65* %7, align 8
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%11 = add i65 %9, %10
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store i65 %11, i65* %8, align 8
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%12 = load i65, i65* %6, align 8
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%13 = load i65, i65* %7, align 8
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%14 = load i65, i65* %8, align 8
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%15 = trunc i65 %12 to i64
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%16 = trunc i65 %13 to i64
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%17 = trunc i65 %14 to i64
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%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i32 0, i32 0), i64 %15, i64 %16, i64 %17)
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ret i32 0
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}
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declare i32 @printf(i8*, ...) #1
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attributes #0 = { noinline nounwind optnone sspstrong uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.module.flags = !{!0, !1, !2}
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!llvm.ident = !{!3}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{i32 7, !"PIE Level", i32 2}
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!3 = !{!"clang version 7.0.0 (tags/RELEASE_700/final)"}
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59
C/strange_size/i65.s.s
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C/strange_size/i65.s.s
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.text
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.intel_syntax noprefix
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.file "i65.c"
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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.cfi_startproc
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# %bb.0:
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push rbp
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.cfi_def_cfa_offset 16
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.cfi_offset rbp, -16
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mov rbp, rsp
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.cfi_def_cfa_register rbp
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sub rsp, 80
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mov dword ptr [rbp - 56], 0
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mov dword ptr [rbp - 52], edi
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mov qword ptr [rbp - 64], rsi
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mov byte ptr [rbp - 24], 1
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mov qword ptr [rbp - 32], -1
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mov byte ptr [rbp - 8], 1
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mov qword ptr [rbp - 16], -1
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movzx eax, byte ptr [rbp - 24]
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mov rcx, qword ptr [rbp - 32]
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movzx edx, byte ptr [rbp - 8]
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mov rsi, qword ptr [rbp - 16]
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add rcx, rsi
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adc rax, rdx
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mov qword ptr [rbp - 48], rcx
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and eax, 1
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mov byte ptr [rbp - 40], al
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movzx edx, byte ptr [rbp - 24]
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mov rsi, qword ptr [rbp - 32]
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movzx r8d, byte ptr [rbp - 8]
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mov rcx, qword ptr [rbp - 16]
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movzx eax, byte ptr [rbp - 40]
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mov r9, qword ptr [rbp - 48]
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mov qword ptr [rsp], rax
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mov edi, offset .L.str
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xor eax, eax
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call printf
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xor eax, eax
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add rsp, 80
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pop rbp
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.cfi_def_cfa rsp, 8
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ret
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.Lfunc_end0:
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.size main, .Lfunc_end0-main
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.cfi_endproc
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# -- End function
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.type .L.str,@object # @.str
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.section .rodata.str1.1,"aMS",@progbits,1
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.L.str:
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.asciz "%lu + %lu = %lu\n"
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.size .L.str, 17
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.ident "clang version 7.0.0 (tags/RELEASE_700/final)"
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.section ".note.GNU-stack","",@progbits
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