Semicompiled

int produce(void);
void myEntry(void)
{
    int y;
    switch (produce())
    {
    case 0:
        y = 0;
        break;
    case 1:
        y = 33;
        break;
    default:
        y = 72;
        break;
    }
}

; ModuleID = '/tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c'
source_filename = "/tmp/semicompiled-bdhYLGnc-10604306854690535433/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 = alloca i32, align 4
  %2 = call i32 @produce()
  switch i32 %2, label %5 [
    i32 0, label %3
    i32 1, label %4
  ]
 
3:                                                ; preds = %0
  store i32 0, i32* %1, align 4
  br label %6
 
4:                                                ; preds = %0
  store i32 33, i32* %1, align 4
  br label %6
 
5:                                                ; preds = %0
  store i32 72, i32* %1, align 4
  br label %6
 
6:                                                ; preds = %5, %4, %3
  ret void
}
 
declare dso_local i32 @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-bdhYLGnc-10604306854690535433/source.c'
source_filename = "/tmp/semicompiled-bdhYLGnc-10604306854690535433/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 = alloca i32, align 4
  call void @llvm.dbg.declare(metadata i32* %1, metadata !11, metadata !DIExpression()), !dbg !13
  %2 = call i32 @produce(), !dbg !14
  switch i32 %2, label %5 [
    i32 0, label %3
    i32 1, label %4
  ], !dbg !15
 
3:                                                ; preds = %0
  store i32 0, i32* %1, align 4, !dbg !16
  br label %6, !dbg !18
 
4:                                                ; preds = %0
  store i32 33, i32* %1, align 4, !dbg !19
  br label %6, !dbg !20
 
5:                                                ; preds = %0
  store i32 72, i32* %1, align 4, !dbg !21
  br label %6, !dbg !22
 
6:                                                ; preds = %5, %4, %3
  ret void, !dbg !23
}
 
; Function Attrs: nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
 
declare dso_local i32 @produce() #2
 
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 = { nounwind readnone speculatable willreturn }
attributes #2 = { "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-bdhYLGnc-10604306854690535433/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: 2, type: !9, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!8 = !DIFile(filename: "/tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c", directory: "")
!9 = !DISubroutineType(types: !10)
!10 = !{null}
!11 = !DILocalVariable(name: "y", scope: !7, file: !8, line: 4, type: !12)
!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!13 = !DILocation(line: 4, column: 9, scope: !7)
!14 = !DILocation(line: 5, column: 13, scope: !7)
!15 = !DILocation(line: 5, column: 5, scope: !7)
!16 = !DILocation(line: 8, column: 11, scope: !17)
!17 = distinct !DILexicalBlock(scope: !7, file: !8, line: 6, column: 5)
!18 = !DILocation(line: 9, column: 9, scope: !17)
!19 = !DILocation(line: 11, column: 11, scope: !17)
!20 = !DILocation(line: 12, column: 9, scope: !17)
!21 = !DILocation(line: 14, column: 11, scope: !17)
!22 = !DILocation(line: 15, column: 9, scope: !17)
!23 = !DILocation(line: 17, column: 1, scope: !7)

(module
  (type (;0;) (func))
  (type (;1;) (func (result i32)))
  (import "env" "produce" (func (;0;) (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 (;1;) (type 0)
    call 2)
  (func (;2;) (type 0))
  (func (;3;) (type 0)
    (local i32 i32 i32 i32 i32 i32 i32 i32 i32 i32)
    global.get 0
    local.set 0
    i32.const 16
    local.set 1
    local.get 0
    local.get 1
    i32.sub
    local.set 2
    local.get 2
    global.set 0
    call 0
    local.set 3
    i32.const 1
    local.set 4
    local.get 3
    local.get 4
    i32.gt_u
    drop
    block  ;; label = @1
      block  ;; label = @2
        block  ;; label = @3
          block  ;; label = @4
            local.get 3
            br_table 0 (;@4;) 1 (;@3;) 2 (;@2;)
          end
          i32.const 0
          local.set 5
          local.get 2
          local.get 5
          i32.store offset=12
          br 2 (;@1;)
        end
        i32.const 33
        local.set 6
        local.get 2
        local.get 6
        i32.store offset=12
        br 1 (;@1;)
      end
      i32.const 72
      local.set 7
      local.get 2
      local.get 7
      i32.store offset=12
    end
    i32.const 16
    local.set 8
    local.get 2
    local.get 8
    i32.add
    local.set 9
    local.get 9
    global.set 0
    return)
  (global (;3;) i32 (i32.const 0))
  (export "__post_instantiate" (func 1))
  (export "__wasm_apply_relocs" (func 2))
  (export "myEntry" (func 3))
  (export "__dso_handle" (global 3)))

 
/tmp/semicompiled-bdhYLGnc-10604306854690535433/source.o:	file format elf64-bpf
 
 
Disassembly of section .text:
 
0000000000000000 <myEntry>:
; myEntry():
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:5
;     switch (produce())
       0:	call -1
       1:	r1 = r0
       2:	r1 <<= 32
       3:	r1 >>= 32
       4:	*(u64 *)(r10 - 16) = r0
       5:	if r1 == 0 goto +6 <LBB0_1>
       6:	goto +0 <LBB0_5>
 
0000000000000038 <LBB0_5>:
       7:	r1 = *(u64 *)(r10 - 16)
       8:	r1 <<= 32
       9:	r1 >>= 32
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:5
;     switch (produce())
      10:	if r1 == 1 goto +4 <LBB0_2>
      11:	goto +6 <LBB0_3>
 
0000000000000060 <LBB0_1>:
      12:	r1 = 0
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:8
;         y = 0;
      13:	*(u32 *)(r10 - 4) = r1
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:9
;         break;
      14:	goto +6 <LBB0_4>
 
0000000000000078 <LBB0_2>:
      15:	r1 = 33
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:11
;         y = 33;
      16:	*(u32 *)(r10 - 4) = r1
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:12
;         break;
      17:	goto +3 <LBB0_4>
 
0000000000000090 <LBB0_3>:
      18:	r1 = 72
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:14
;         y = 72;
      19:	*(u32 *)(r10 - 4) = r1
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:15
;         break;
      20:	goto +0 <LBB0_4>
 
00000000000000a8 <LBB0_4>:
; /tmp/semicompiled-bdhYLGnc-10604306854690535433/source.c:17
; }
      21:	exit