1 files changed, 173 insertions, 0 deletions
diff --git a/test/CodeGen/PR8880.c b/test/CodeGen/PR8880.c
new file mode 100644
index 000000000000..e03d2a42b610
--- /dev/null
+++ b/test/CodeGen/PR8880.c
@@ -0,0 +1,173 @@
+// RUN: %clang_cc1 -Wno-gcc-compat -emit-llvm -o - %s | FileCheck %s
+
+void pr8880_cg_1(int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_1(
+  int i, j;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+  for (i = 2; i != 10 ; i++ )
+// CHECK: [[OUTER_COND]]
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    for (j = 3 ; j < 22; (void)({ ++j; break; j;})) {
+// CHECK: [[INNER_COND]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+      *iptr = 7;
+// CHECK: store i32 7,
+// CHECK: br label %[[INNER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_INC]]
+
+// break in 3rd expression of inner loop causes branch to end of inner loop
+
+// CHECK: br label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_END]]
+    }
+// CHECK: br label %[[OUTER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_INC]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret
+}
+
+void pr8880_cg_2(int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_2(
+  int i, j;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+  for (i = 2; i != 10 ; i++ )
+// CHECK: [[OUTER_COND]]
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    for (j = 3 ; j < 22; (void)({ ++j; continue; j;})) {
+// CHECK: [[INNER_COND]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+      *iptr = 7;
+// CHECK: store i32 7,
+// CHECK: br label %[[INNER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_INC]]
+
+// continue in 3rd expression of inner loop causes branch to inc of inner loop
+
+// CHECK: br label %[[INNER_INC]]
+// CHECK: [[INNER_END]]
+    }
+// CHECK: br label %[[OUTER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_INC]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret
+}
+
+void pr8880_cg_3(int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_3(
+  int i, j;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+  for (i = 2 ; i != 10 ; i++ )
+// CHECK: [[OUTER_COND]]
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    for (j = 3 ; ({break; j;}); j++) {
+
+// break in 2nd expression of inner loop causes branch to end of inner loop
+
+// CHECK: [[INNER_COND]]
+// CHECK: br label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+      *iptr = 7;
+// CHECK: store i32 7,
+// CHECK: br label %[[INNER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_INC]]
+// CHECK: br label %[[INNER_COND]]
+    }
+// CHECK: [[INNER_END]]
+// CHECK: br label %[[OUTER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_INC]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret
+}
+
+void pr8880_cg_4(int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_4(
+  int i, j;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+  for (i = 2 ; i != 10 ; i++ )
+// CHECK: [[OUTER_COND]]
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    for (j = 3 ; ({continue; j;}); j++) {
+
+// continue in 2nd expression of inner loop causes branch to inc of inner loop
+
+// CHECK: [[INNER_COND]]
+// CHECK: br label %[[INNER_INC:[0-9A-Za-z$._]+]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+      *iptr = 7;
+// CHECK: store i32 7,
+// CHECK: br label %[[INNER_INC]]
+// CHECK: [[INNER_INC]]
+// CHECK: br label %[[INNER_COND]]
+    }
+// CHECK: [[INNER_END]]
+// CHECK: br label %[[OUTER_INC:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_INC]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret
+}
+
+void pr8880_cg_5(int x, int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_5(
+  int y = 5;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_COND]]
+  while(--x) {
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    while(({ break; --y; })) {
+// CHECK: [[INNER_COND]]
+// CHECK: br label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+      *iptr = 7;
+// CHECK: store i32 7,
+    }
+// CHECK: br label %[[INNER_COND]]
+  }
+// CHECK: [[INNER_END]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret void
+}
+
+void pr8880_cg_6(int x, int *iptr) {
+// CHECK-LABEL: define void @pr8880_cg_6(
+  int y = 5;
+// CHECK: br label %[[OUTER_COND:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_COND]]
+  while(--x) {
+// CHECK: label %[[OUTER_BODY:[0-9A-Za-z$._]+]], label %[[OUTER_END:[0-9A-Za-z$._]+]]
+// CHECK: [[OUTER_BODY]]
+// CHECK: br label %[[INNER_BODY:[0-9A-Za-z$._]+]]
+// CHECK: [[INNER_BODY]]
+    do {
+// CHECK: store i32 7,
+      *iptr = 7;
+// CHECK: br label %[[INNER_COND:[0-9A-Za-z$._]+]]
+    } while(({ break; --y; }));
+// CHECK: [[INNER_COND]]
+// CHECK: br label %[[INNER_END:[0-9A-Za-z$._]+]]
+// CHECK: label %[[INNER_BODY:[0-9A-Za-z$._]+]], label %[[INNER_END]]
+  }
+// CHECK: [[INNER_END]]
+// CHECK: br label %[[OUTER_COND]]
+// CHECK: [[OUTER_END]]
+// CHECK: ret void
+}