Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/Reassociate/vaarg_movable.ll

@@ -1,28 +0,0 @@
-; RUN: opt -S -reassociate -die < %s | FileCheck %s
-
-; The two va_arg instructions depend on the memory/context, are therfore not
-; identical and the sub should not be optimized to 0 by reassociate.
-;
-; CHECK-LABEL: @func(
-; ...
-; CHECK: %v0 = va_arg i8** %varargs, i32
-; CHECK: %v1 = va_arg i8** %varargs, i32
-; CHECK: %v0.neg = sub i32 0, %v0
-; CHECK: %sub = add i32 %v0.neg, 1
-; CHECK: %add = add i32 %sub, %v1
-; ...
-; CHECK: ret i32 %add
-define i32 @func(i32 %dummy, ...) {
-  %varargs = alloca i8*, align 8
-  %varargs1 = bitcast i8** %varargs to i8*
-  call void @llvm.va_start(i8* %varargs1)
-  %v0 = va_arg i8** %varargs, i32
-  %v1 = va_arg i8** %varargs, i32
-  %sub = sub nsw i32 %v1, %v0
-  %add = add nsw i32 %sub, 1
-  call void @llvm.va_end(i8* %varargs1)
-  ret i32 %add
-}
-
-declare void @llvm.va_start(i8*)
-declare void @llvm.va_end(i8*)