Index: test/NaCl/Bitcode/pnacl-bcdis/forwarddcl.ll |
diff --git a/test/NaCl/Bitcode/pnacl-bcdis/forwarddcl.ll b/test/NaCl/Bitcode/pnacl-bcdis/forwarddcl.ll |
new file mode 100644 |
index 0000000000000000000000000000000000000000..23f425a9d1eecd7454d1e8dcc49a50bec59bafb4 |
--- /dev/null |
+++ b/test/NaCl/Bitcode/pnacl-bcdis/forwarddcl.ll |
@@ -0,0 +1,94 @@ |
+; Test if forward declare works. |
+ |
+; RUN: llvm-as < %s | pnacl-freeze | pnacl-bccompress --remove-abbreviations \ |
+; RUN: | pnacl-bcdis | FileCheck %s |
+ |
+; Tests case where forward declare will be added because of loop carried |
+; dependency. |
+define void @LoopCarriedDep() { |
+ |
+; CHECK: {{.*}}| 1: <65535, 11, 2> | constants { // BlockID = 11 |
+; CHECK-NEXT: {{.*}}| 3: <1, 0> | i32: |
+; CHECK-NEXT: {{.*}}| 3: <4, 2> | %c0 = i32 1; |
+; CHECK-NEXT: {{.*}}| 3: <4, 4> | %c1 = i32 2; |
+; CHECK-NEXT: {{.*}}| 0: <65534> | } |
+ |
+b0: |
+ %v0 = add i32 1, 2 |
+ br label %b1 |
+ |
+; CHECK-NEXT: | | %b0: |
+; CHECK-NEXT: {{.*}}| 3: <2, 2, 1, 0> | %v0 = add i32 %c0, %c1; |
+; CHECK-NEXT: {{.*}}| 3: <11, 1> | br label %b1; |
+ |
+b1: |
+ %v1 = phi i32 [%v0, %b0], [%v2, %b1] |
+ %v2 = add i32 %v1, 1 |
+ br label %b1 |
+ |
+; CHECK-NEXT: | | %b1: |
+; CHECK-NEXT: {{.*}}| 3: <43, 6, 0> | declare i32 %v2; |
+; CHECK-NEXT: {{.*}}| 3: <16, 0, 2, 0, 3, 1> | %v1 = phi i32 [%v0, %b0], |
+; CHECK-NEXT: | | [%v2, %b1]; |
+; CHECK-NEXT: {{.*}}| 3: <2, 1, 4, 0> | %v2 = add i32 %v1, %c0; |
+; CHECK-NEXT: {{.*}}| 3: <11, 1> | br label %b1; |
+ |
+} |
+ |
+; Test case where we backward branch. |
+define void @BackBranch(i32 %p0) { |
+ br label %b4 |
+ |
+; CHECK: | | %b0: |
+; CHECK-NEXT: {{.*}}| 3: <11, 4> | br label %b4; |
+ |
+b1: |
+ %v0 = add i32 %p0, %v3 |
+ br label %b6 |
+ |
+; CHECK-NEXT: | | %b1: |
+; CHECK-NEXT: {{.*}}| 3: <43, 7, 0> | declare i32 %v3; |
+; CHECK-NEXT: {{.*}}| 3: <2, 2, 4294967293, 0> | %v0 = add i32 %p0, %v3; |
+; CHECK-NEXT: {{.*}}| 3: <11, 6> | br label %b6; |
+ |
+b2: |
+ %v1 = add i32 %p0, %v4 |
+ br label %b6 |
+ |
+; CHECK-NEXT: | | %b2: |
+; CHECK-NEXT: {{.*}}| 3: <43, 8, 0> | declare i32 %v4; |
+; CHECK-NEXT: {{.*}}| 3: <2, 3, 4294967293, 0> | %v1 = add i32 %p0, %v4; |
+; CHECK-NEXT: {{.*}}| 3: <11, 6> | br label %b6; |
+ |
+b3: |
+ %v2 = add i32 %p0, %v3 ; No forward declare, already done! |
+ br label %b6 |
+ |
+; CHECK-NEXT: | | %b3: |
+; CHECK-NEXT: {{.*}}| 3: <2, 4, 4294967295, 0> | %v2 = add i32 %p0, %v3; |
+; CHECK-NEXT: {{.*}}| 3: <11, 6> | br label %b6; |
+ |
+b4: |
+ %v3 = add i32 %p0, %p0 |
+ br i1 1, label %b1, label %b5 |
+ |
+; CHECK-NEXT: | | %b4: |
+; CHECK-NEXT: {{.*}}| 3: <2, 5, 5, 0> | %v3 = add i32 %p0, %p0; |
+; CHECK-NEXT: {{.*}}| 3: <11, 1, 5, 5> | br i1 %c0, label %b1, label %b5; |
+ |
+b5: |
+ %v4 = add i32 %v3, %p0 |
+ br i1 1, label %b2, label %b3 |
+ |
+; CHECK-NEXT: | | %b5: |
+; CHECK-NEXT: {{.*}}| 3: <2, 1, 6, 0> | %v4 = add i32 %v3, %p0; |
+; CHECK-NEXT: {{.*}}| 3: <11, 2, 3, 6> | br i1 %c0, label %b2, label %b3; |
+ |
+b6: |
+ ret void |
+ |
+; CHECK-NEXT: | | %b6: |
+; CHECK-NEXT: {{.*}}| 3: <10> | ret void; |
+ |
+} |
+ |