[llvm] 893aa32 - [InstCombine] Add test for code after non-terminator unreachable (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2023-06-22T15:57:07+02:00
New Revision: 893aa3201d9ca32519cbbd4001db639b14d74deb

URL: https://github.com/llvm/llvm-project/commit/893aa3201d9ca32519cbbd4001db639b14d74deb
DIFF: https://github.com/llvm/llvm-project/commit/893aa3201d9ca32519cbbd4001db639b14d74deb.diff

LOG: [InstCombine] Add test for code after non-terminator unreachable (NFC)

Added: 
    

Modified: 
    llvm/test/Transforms/InstCombine/unreachable-code.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/InstCombine/unreachable-code.ll b/llvm/test/Transforms/InstCombine/unreachable-code.ll
index d55e779b71a99..2d1656fa2a54d 100644
--- a/llvm/test/Transforms/InstCombine/unreachable-code.ll
+++ b/llvm/test/Transforms/InstCombine/unreachable-code.ll
@@ -189,3 +189,40 @@ default:
   call void @dummy()
   ret void
 }
+
+define void @non_term_unreachable() {
+; CHECK-LABEL: define void @non_term_unreachable() {
+; CHECK-NEXT:    store i1 true, ptr poison, align 1
+; CHECK-NEXT:    call void @dummy()
+; CHECK-NEXT:    ret void
+;
+  store i1 true, ptr poison
+  call void @dummy()
+  ret void
+}
+
+define i32 @non_term_unreachable_phi(i1 %c) {
+; CHECK-LABEL: define i32 @non_term_unreachable_phi
+; CHECK-SAME: (i1 [[C:%.*]]) {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[C]], label [[IF:%.*]], label [[JOIN:%.*]]
+; CHECK:       if:
+; CHECK-NEXT:    store i1 true, ptr poison, align 1
+; CHECK-NEXT:    call void @dummy()
+; CHECK-NEXT:    br label [[JOIN]]
+; CHECK:       join:
+; CHECK-NEXT:    [[PHI:%.*]] = phi i32 [ 1, [[IF]] ], [ 2, [[ENTRY:%.*]] ]
+; CHECK-NEXT:    ret i32 [[PHI]]
+;
+entry:
+  br i1 %c, label %if, label %join
+
+if:
+  store i1 true, ptr poison
+  call void @dummy()
+  br label %join
+
+join:
+  %phi = phi i32 [ 1, %if], [ 2, %entry ]
+  ret i32 %phi
+}