Semicompiled

Bitwise xor

source.c

 char produce(void);
void consume(char);
void myEntry(void)
{
    consume(produce() ^ 2);
}

 ; ModuleID = '/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c'
source_filename = "/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
 
; Function Attrs: noinline nounwind optnone uwtable
define dso_local void @myEntry() #0 {
  %1 = call signext i8 @produce()
  %2 = sext i8 %1 to i32
  %3 = xor i32 %2, 2
  %4 = trunc i32 %3 to i8
  call void @consume(i8 signext %4)
  ret void
}
 
declare dso_local void @consume(i8 signext) #1
 
declare dso_local signext i8 @produce() #1
 
attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
 
!llvm.module.flags = !{!0}
!llvm.ident = !{!1}
 
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"Debian clang version 11.0.1-2"}

 ; ModuleID = '/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c'
source_filename = "/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
 
; Function Attrs: noinline nounwind optnone uwtable
define dso_local void @myEntry() #0 !dbg !7 {
  %1 = call signext i8 @produce(), !dbg !11
  %2 = sext i8 %1 to i32, !dbg !11
  %3 = xor i32 %2, 2, !dbg !12
  %4 = trunc i32 %3 to i8, !dbg !11
  call void @consume(i8 signext %4), !dbg !13
  ret void, !dbg !14
}
 
declare dso_local void @consume(i8 signext) #1
 
declare dso_local signext i8 @produce() #1
 
attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
 
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
 
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Debian clang version 11.0.1-2", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c", directory: "/__w/semicompiled/semicompiled")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{!"Debian clang version 11.0.1-2"}
!7 = distinct !DISubprogram(name: "myEntry", scope: !8, file: !8, line: 3, type: !9, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!8 = !DIFile(filename: "/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c", directory: "")
!9 = !DISubroutineType(types: !10)
!10 = !{null}
!11 = !DILocation(line: 5, column: 13, scope: !7)
!12 = !DILocation(line: 5, column: 23, scope: !7)
!13 = !DILocation(line: 5, column: 5, scope: !7)
!14 = !DILocation(line: 6, column: 1, scope: !7)

 (module
  (type (;0;) (func))
  (type (;1;) (func (param i32)))
  (type (;2;) (func (result i32)))
  (import "env" "produce" (func (;0;) (type 2)))
  (import "env" "consume" (func (;1;) (type 1)))
  (import "env" "__stack_pointer" (global (;0;) (mut i32)))
  (import "env" "__memory_base" (global (;1;) i32))
  (import "env" "__table_base" (global (;2;) i32))
  (import "env" "memory" (memory (;0;) 0))
  (import "env" "__indirect_function_table" (table (;0;) 0 funcref))
  (func (;2;) (type 0)
    call 3)
  (func (;3;) (type 0))
  (func (;4;) (type 0)
    (local i32 i32 i32 i32 i32 i32 i32 i32 i32)
    call 0
    local.set 0
    i32.const 24
    local.set 1
    local.get 0
    local.get 1
    i32.shl
    local.set 2
    local.get 2
    local.get 1
    i32.shr_s
    local.set 3
    i32.const 2
    local.set 4
    local.get 3
    local.get 4
    i32.xor
    local.set 5
    i32.const 24
    local.set 6
    local.get 5
    local.get 6
    i32.shl
    local.set 7
    local.get 7
    local.get 6
    i32.shr_s
    local.set 8
    local.get 8
    call 1
    return)
  (global (;3;) i32 (i32.const 0))
  (export "__post_instantiate" (func 2))
  (export "__wasm_apply_relocs" (func 3))
  (export "myEntry" (func 4))
  (export "__dso_handle" (global 3)))

  
/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.o:	file format elf64-bpf
 
 
Disassembly of section .text:
 
0000000000000000 <myEntry>:
; myEntry():
; /tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c:5
;     consume(produce() ^ 2);
       0:	call -1
       1:	r0 ^= 2
       2:	r1 = r0
       3:	call -1
; /tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c:6
; }
       4:	exit

	char produce(void);
	void consume(char);
	void myEntry(void)
	{
	consume(produce() ^ 2);
	}

	; ModuleID = '/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c'
	source_filename = "/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c"
	target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
	target triple = "x86_64-pc-linux-gnu"

	; Function Attrs: noinline nounwind optnone uwtable
	define dso_local void @myEntry() #0 {
	%1 = call signext i8 @produce()
	%2 = sext i8 %1 to i32
	%3 = xor i32 %2, 2
	%4 = trunc i32 %3 to i8
	call void @consume(i8 signext %4)
	ret void
	}

	declare dso_local void @consume(i8 signext) #1

	declare dso_local signext i8 @produce() #1

	attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
	attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }

	!llvm.module.flags = !{!0}
	!llvm.ident = !{!1}

	!0 = !{i32 1, !"wchar_size", i32 4}
	!1 = !{!"Debian clang version 11.0.1-2"}

	(module
	(type (;0;) (func))
	(type (;1;) (func (param i32)))
	(type (;2;) (func (result i32)))
	(import "env" "produce" (func (;0;) (type 2)))
	(import "env" "consume" (func (;1;) (type 1)))
	(import "env" "__stack_pointer" (global (;0;) (mut i32)))
	(import "env" "__memory_base" (global (;1;) i32))
	(import "env" "__table_base" (global (;2;) i32))
	(import "env" "memory" (memory (;0;) 0))
	(import "env" "__indirect_function_table" (table (;0;) 0 funcref))
	(func (;2;) (type 0)
	call 3)
	(func (;3;) (type 0))
	(func (;4;) (type 0)
	(local i32 i32 i32 i32 i32 i32 i32 i32 i32)
	call 0
	local.set 0
	i32.const 24
	local.set 1
	local.get 0
	local.get 1
	i32.shl
	local.set 2
	local.get 2
	local.get 1
	i32.shr_s
	local.set 3
	i32.const 2
	local.set 4
	local.get 3
	local.get 4
	i32.xor
	local.set 5
	i32.const 24
	local.set 6
	local.get 5
	local.get 6
	i32.shl
	local.set 7
	local.get 7
	local.get 6
	i32.shr_s
	local.set 8
	local.get 8
	call 1
	return)
	(global (;3;) i32 (i32.const 0))
	(export "__post_instantiate" (func 2))
	(export "__wasm_apply_relocs" (func 3))
	(export "myEntry" (func 4))
	(export "__dso_handle" (global 3)))


	/tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.o: file format elf64-bpf


	Disassembly of section .text:

	0000000000000000 <myEntry>:
	; myEntry():
	; /tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c:5
	; consume(produce() ^ 2);
	0: call -1
	1: r0 ^= 2
	2: r1 = r0
	3: call -1
	; /tmp/semicompiled-BPiQWBvX-R80HKLjQ-6025061284416305328/source.c:6
	; }
	4: exit