Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/GVN/calloc-load-removal.ll

@@ -1,25 +0,0 @@
-; RUN: opt -S -basicaa -gvn < %s | FileCheck %s
-; RUN: opt -S -basicaa -gvn -disable-simplify-libcalls < %s | FileCheck %s -check-prefix=CHECK_NO_LIBCALLS
-; Check that loads from calloc are recognized as being zero.
-
-target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
-
-; Function Attrs: nounwind uwtable
-define i32 @test1() {
-  %1 = tail call noalias i8* @calloc(i64 1, i64 4)
-  %2 = bitcast i8* %1 to i32*
-  ; This load is trivially constant zero
-  %3 = load i32, i32* %2, align 4
-  ret i32 %3
-
-; CHECK-LABEL: @test1(
-; CHECK-NOT: %3 = load i32, i32* %2, align 4
-; CHECK: ret i32 0
-
-; CHECK_NO_LIBCALLS-LABEL: @test1(
-; CHECK_NO_LIBCALLS: load
-; CHECK_NO_LIBCALLS: ret i32 %
-
-}
-
-declare noalias i8* @calloc(i64, i64)