Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/NewGVN/invariant.start.ll

@@ -1,59 +0,0 @@
-; Test to make sure llvm.invariant.start calls are not treated as clobbers.
-; RUN: opt < %s -newgvn -S | FileCheck %s
-
-
-declare {}* @llvm.invariant.start.p0i8(i64, i8* nocapture) nounwind readonly
-declare void @llvm.invariant.end.p0i8({}*, i64, i8* nocapture) nounwind
-
-; We forward store to the load across the invariant.start intrinsic
-define i8 @forward_store() {
-; CHECK-LABEL: @forward_store
-; CHECK: call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-; CHECK-NOT: load
-; CHECK: ret i8 0
-  %a = alloca i8
-  store i8 0, i8* %a
-  %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-  %r = load i8, i8* %a
-  ret i8 %r
-}
-
-declare i8 @dummy(i8* nocapture) nounwind readonly
-
-; We forward store to the load in the non-local analysis case,
-; i.e. invariant.start is in another basic block.
-define i8 @forward_store_nonlocal(i1 %cond) {
-; CHECK-LABEL: forward_store_nonlocal
-; CHECK: call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-; CHECK: ret i8 0
-; CHECK: ret i8 %val
-  %a = alloca i8
-  store i8 0, i8* %a
-  %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-  br i1 %cond, label %loadblock, label %exit
-
-loadblock:
-  %r = load i8, i8* %a
-  ret i8 %r
-
-exit:
-  %val = call i8 @dummy(i8* %a)
-  ret i8 %val
-}
-
-; We should not value forward %foo to the invariant.end corresponding to %bar.
-define i8 @forward_store1() {
-; CHECK-LABEL: forward_store1
-; CHECK: %foo = call {}* @llvm.invariant.start.p0i8
-; CHECK-NOT: load
-; CHECK: %bar = call {}* @llvm.invariant.start.p0i8
-; CHECK: call void @llvm.invariant.end.p0i8({}* %bar, i64 1, i8* %a)
-; CHECK: ret i8 0
-  %a = alloca i8
-  store i8 0, i8* %a
-  %foo = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-  %r = load i8, i8* %a
-  %bar = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a)
-  call void @llvm.invariant.end.p0i8({}* %bar, i64 1, i8* %a)
-  ret i8 %r
-}