in.c

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
    volatile int i= 1;
    int a = 0;
    if(i == 1) {
        printf("foo\n");
        a=1;
    } else {
        printf("bar\n");
        a = 0;
    }
    return a;
}

out.ll

; ModuleID = 'Untitled 12.m'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-macosx10.7.4"

@"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip"
@llvm.used = appending global [1 x i8*] [i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata"
@str = internal constant [4 x i8] c"foo\00"
@str2 = internal constant [4 x i8] c"bar\00"

define i32 @main(i32 %argc, i8** nocapture %argv) nounwind ssp {
  %i = alloca i32, align 4
  volatile store i32 1, i32* %i, align 4
  %1 = volatile load i32* %i, align 4
  %2 = icmp eq i32 %1, 1
  br i1 %2, label %3, label %4

; <label>:3                                       ; preds = %0
  %puts = call i32 @puts(i8* getelementptr inbounds ([4 x i8]* @str, i64 0, i64 0))
  br label %5

; <label>:4                                       ; preds = %0
  %puts1 = call i32 @puts(i8* getelementptr inbounds ([4 x i8]* @str2, i64 0, i64 0))
  br label %5

; <label>:5                                       ; preds = %4, %3
  %a.0 = phi i32 [ 1, %3 ], [ 0, %4 ]
  ret i32 %a.0
}

declare i32 @puts(i8* nocapture) nounwind