[llvm] b32fa17 - [Test] Add a potentially hanging test to prevent merging patches that hang it
Max Kazantsev via llvm-commits
llvm-commits at lists.llvm.org
Thu Feb 11 22:49:16 PST 2021
Author: Max Kazantsev
Date: 2021-02-12T13:48:40+07:00
New Revision: b32fa1751f3cb7d93c5c2490f775415a1bcf1a73
URL: https://github.com/llvm/llvm-project/commit/b32fa1751f3cb7d93c5c2490f775415a1bcf1a73
DIFF: https://github.com/llvm/llvm-project/commit/b32fa1751f3cb7d93c5c2490f775415a1bcf1a73.diff
LOG: [Test] Add a potentially hanging test to prevent merging patches that hang it
Added:
Modified:
llvm/test/CodeGen/X86/2020_12_02_decrementing_loop.ll
Removed:
################################################################################
diff --git a/llvm/test/CodeGen/X86/2020_12_02_decrementing_loop.ll b/llvm/test/CodeGen/X86/2020_12_02_decrementing_loop.ll
index c59f4a96464d..4cdcb5001912 100644
--- a/llvm/test/CodeGen/X86/2020_12_02_decrementing_loop.ll
+++ b/llvm/test/CodeGen/X86/2020_12_02_decrementing_loop.ll
@@ -173,3 +173,56 @@ exit: ; preds = %loop
failure: ; preds = %backedge
unreachable
}
+
+define void @test_04() {
+; CHECK-LABEL: test_04:
+; CHECK: ## %bb.0: ## %bb
+; CHECK-NEXT: ud2
+bb:
+ br label %bb1
+
+bb1: ; preds = %bb10, %bb
+ %tmp = phi i64 [ 1, %bb ], [ %tmp2, %bb10 ]
+ %tmp2 = add nuw nsw i64 %tmp, 1
+ %tmp6 = bitcast i8 addrspace(1)* undef to i32 addrspace(1)*
+ br i1 undef, label %bb21, label %bb7
+
+bb7: ; preds = %bb1
+ %tmp8 = add nsw i64 %tmp, -1
+ %tmp9 = getelementptr inbounds i32, i32 addrspace(1)* %tmp6, i64 %tmp8
+ store atomic i32 undef, i32 addrspace(1)* %tmp9 unordered, align 4
+ br label %bb11
+
+bb10: ; preds = %bb16
+ br label %bb1
+
+bb11: ; preds = %bb16, %bb7
+ switch i32 undef, label %bb19 [
+ i32 0, label %bb17
+ i32 1, label %bb16
+ i32 2, label %bb15
+ i32 3, label %bb14
+ i32 4, label %bb12
+ ]
+
+bb12: ; preds = %bb11
+ unreachable
+
+bb14: ; preds = %bb11
+ unreachable
+
+bb15: ; preds = %bb11
+ unreachable
+
+bb16: ; preds = %bb11
+ br i1 undef, label %bb10, label %bb11
+
+bb17: ; preds = %bb11
+ unreachable
+
+bb19: ; preds = %bb11
+ unreachable
+
+bb21: ; preds = %bb1
+ unreachable
+}
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