Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/SimplifyCFG/speculate-store.ll

@@ -1,90 +0,0 @@
-; RUN: opt -simplifycfg -S < %s | FileCheck %s
-
-define void @ifconvertstore(i32* %A, i32 %B, i32 %C, i32 %D) {
-; CHECK-LABEL: @ifconvertstore(
-; CHECK:         store i32 %B, i32* %A
-; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 %D, 42
-; CHECK-NEXT:    [[C_B:%.*]] = select i1 [[CMP]], i32 %C, i32 %B, !prof !0
-; CHECK-NEXT:    store i32 [[C_B]], i32* %A
-; CHECK-NEXT:    ret void
-;
-entry:
-; First store to the location.
-  store i32 %B, i32* %A
-  %cmp = icmp sgt i32 %D, 42
-  br i1 %cmp, label %if.then, label %ret.end, !prof !0
-
-; Make sure we speculate stores like the following one. It is cheap compared to
-; a mispredicated branch.
-if.then:
-  store i32 %C, i32* %A
-  br label %ret.end
-
-ret.end:
-  ret void
-}
-
-; Store to a different location.
-
-define void @noifconvertstore1(i32* %A1, i32* %A2, i32 %B, i32 %C, i32 %D) {
-; CHECK-LABEL: @noifconvertstore1(
-; CHECK-NOT: select
-;
-entry:
-  store i32 %B, i32* %A1
-  %cmp = icmp sgt i32 %D, 42
-  br i1 %cmp, label %if.then, label %ret.end
-
-if.then:
-  store i32 %C, i32* %A2
-  br label %ret.end
-
-ret.end:
-  ret void
-}
-
-; This function could store to our address, so we can't repeat the first store a second time.
-declare void @unknown_fun()
-
-define void @noifconvertstore2(i32* %A, i32 %B, i32 %C, i32 %D) {
-; CHECK-LABEL: @noifconvertstore2(
-; CHECK-NOT: select
-;
-entry:
-; First store to the location.
-  store i32 %B, i32* %A
-  call void @unknown_fun()
-  %cmp6 = icmp sgt i32 %D, 42
-  br i1 %cmp6, label %if.then, label %ret.end
-
-if.then:
-  store i32 %C, i32* %A
-  br label %ret.end
-
-ret.end:
-  ret void
-}
-
-; Make sure we don't speculate volatile stores.
-
-define void @noifconvertstore_volatile(i32* %A, i32 %B, i32 %C, i32 %D) {
-; CHECK-LABEL: @noifconvertstore_volatile(
-; CHECK-NOT: select
-;
-entry:
-; First store to the location.
-  store i32 %B, i32* %A
-  %cmp6 = icmp sgt i32 %D, 42
-  br i1 %cmp6, label %if.then, label %ret.end
-
-if.then:
-  store volatile i32 %C, i32* %A
-  br label %ret.end
-
-ret.end:
-  ret void
-}
-
-; CHECK: !0 = !{!"branch_weights", i32 3, i32 5}
-!0 = !{!"branch_weights", i32 3, i32 5}
-