Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/DeadStoreElimination/calloc-store.ll

@@ -1,65 +0,0 @@
-; RUN: opt < %s -basicaa -dse -S | FileCheck %s
-
-declare noalias i8* @calloc(i64, i64)
-
-define i32* @test1() {
-; CHECK-LABEL: test1
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  %2 = bitcast i8* %1 to i32*
-  ; This store is dead and should be removed
-  store i32 0, i32* %2, align 4
-; CHECK-NOT: store i32 0, i32* %2, align 4
-  ret i32* %2
-}
-
-define i32* @test2() {
-; CHECK-LABEL: test2
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  %2 = bitcast i8* %1 to i32*
-  %3 = getelementptr i32, i32* %2, i32 5
-  store i32 0, i32* %3, align 4
-; CHECK-NOT: store i32 0, i32* %2, align 4
-  ret i32* %2
-}
-
-define i32* @test3(i32 *%arg) {
-; CHECK-LABEL: test3
-  store i32 0, i32* %arg, align 4
-; CHECK: store i32 0, i32* %arg, align 4
-  ret i32* %arg
-}
-
-declare void @clobber_memory(i8*)
-define i8* @test4() {
-; CHECK-LABEL: test4
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  call void @clobber_memory(i8* %1)
-  store i8 0, i8* %1, align 4
-; CHECK: store i8 0, i8* %1, align 4
-  ret i8* %1
-}
-
-define i32* @test5() {
-; CHECK-LABEL: test5
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  %2 = bitcast i8* %1 to i32*
-  store volatile i32 0, i32* %2, align 4
-; CHECK: store volatile i32 0, i32* %2, align 4
-  ret i32* %2
-}
-
-define i8* @test6() {
-; CHECK-LABEL: test6
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  store i8 5, i8* %1, align 4
-; CHECK: store i8 5, i8* %1, align 4
-  ret i8* %1
-}
-
-define i8* @test7(i8 %arg) {
-; CHECK-LABEL: test7
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  store i8 %arg, i8* %1, align 4
-; CHECK: store i8 %arg, i8* %1, align 4
-  ret i8* %1
-}