release/20.x: [LoongArch] Precommit test case to show bug in LoongArchISelDagToDag #144296
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The optimization level should not be restored into O2. (cherry picked from commit fcc82cf)
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@llvm/pr-subscribers-backend-loongarch Author: None (llvmbot) ChangesBackport fcc82cf Requested by: @leecheechen Full diff: https://github.com/llvm/llvm-project/pull/144296.diff 1 Files Affected:
diff --git a/llvm/test/CodeGen/LoongArch/isel-optnone.ll b/llvm/test/CodeGen/LoongArch/isel-optnone.ll
new file mode 100644
index 0000000000000..d44f1405d0c18
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/isel-optnone.ll
@@ -0,0 +1,13 @@
+; REQUIRES: asserts
+; RUN: llc %s -O0 -mtriple=loongarch64 -o /dev/null -debug-only=isel 2>&1 | FileCheck %s
+
+define void @fooOptnone() #0 {
+; CHECK: Changing optimization level for Function fooOptnone
+; CHECK: Before: -O2 ; After: -O0
+
+; CHECK: Restoring optimization level for Function fooOptnone
+; CHECK: Before: -O0 ; After: -O2
+ ret void
+}
+
+attributes #0 = { nounwind optnone noinline }
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Close as it is redundant after #144299 has been created. |
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Backport fcc82cf
Requested by: @leecheechen