handle the case where there is no explicit label for the entry, and the name of the entry is important for phi purposes

2 files changed, 26 insertions, 2 deletions

diff --git a/src/analyzer.js b/src/analyzer.js
index 974dd67d..3feaff92 100644
--- a/src/analyzer.js
+++ b/src/analyzer.js
@@ -69,10 +69,10 @@ function analyzer(data, sidePass) {
           subItem.labels = [];
 
           // no explicit 'entry' label in clang on LLVM 2.8 - most of the time, but not all the time! - so we add one if necessary
-          if (LLVM_STYLE == 'new' && item.items[i+1].intertype !== 'label') {
+          if (item.items[i+1].intertype !== 'label') {
             item.items.splice(i+1, 0, {
               intertype: 'label',
-              ident: toNiceIdent('%0'),
+              ident: toNiceIdent('%1'),
               lineNum: subItem.lineNum + '.5'
             });
           }
diff --git a/tests/cases/phientryimplicit.ll b/tests/cases/phientryimplicit.ll
new file mode 100644
index 00000000..5b3b0b31
--- /dev/null
+++ b/tests/cases/phientryimplicit.ll
@@ -0,0 +1,24 @@
+; ModuleID = 'tests/hello_world.bc'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
+target triple = "i386-pc-linux-gnu"
+
+@.str = private unnamed_addr constant [15 x i8] c"hello, world!\0A\00", align 1 ; [#uses=1 type=[15 x i8]*]
+
+; [#uses=0]
+define i32 @main() {
+  %retval = alloca i32, align 4                   ; [#uses=1 type=i32*]
+  %16 = trunc i32 1 to i1
+  br i1 %16, label %17, label %26, !dbg !1269853  ; [debug line = 3920:5]
+
+; <label>:17                                      ; preds = %1
+  %25 = trunc i32 1 to i1
+
+; <label>:26                                      ; preds = %17, %1
+  %27 = phi i1 [ false, %1 ], [ %25, %17 ]        ; [#uses=1 type=i1]
+  store i32 0, i32* %retval
+  %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([15 x i8]* @.str, i32 0, i32 0)) ; [#uses=0 type=i32]
+  ret i32 1
+}
+
+; [#uses=1]
+declare i32 @printf(i8*, ...)