[SimplifyCFG] Add additional if conversion tests (NFC)

Test a readonly call in between, as well as the combination of
an atomic and simple store.

diff --git a/llvm/test/Transforms/SimplifyCFG/speculate-store.ll b/llvm/test/Transforms/SimplifyCFG/speculate-store.ll
index 6d08d3c..854ca75 100644 (file)
--- a/llvm/test/Transforms/SimplifyCFG/speculate-store.ll
+++ b/llvm/test/Transforms/SimplifyCFG/speculate-store.ll
@@ -133,6 +133,48 @@ ret.end:
   ret void
 }
 
+define void @readonly_call(ptr %ptr, i1 %cmp) {
+; CHECK-LABEL: @readonly_call(
+; CHECK-NEXT:    store i32 0, ptr [[PTR:%.*]], align 4
+; CHECK-NEXT:    call void @unknown_fun() #[[ATTR0:[0-9]+]]
+; CHECK-NEXT:    br i1 [[CMP:%.*]], label [[IF_THEN:%.*]], label [[RET_END:%.*]]
+; CHECK:       if.then:
+; CHECK-NEXT:    store i32 1, ptr [[PTR]], align 4
+; CHECK-NEXT:    br label [[RET_END]]
+; CHECK:       ret.end:
+; CHECK-NEXT:    ret void
+;
+  store i32 0, ptr %ptr
+  call void @unknown_fun() readonly
+  br i1 %cmp, label %if.then, label %ret.end
+
+if.then:
+  store i32 1, ptr %ptr
+  br label %ret.end
+
+ret.end:
+  ret void
+}
+
+define void @atomic_and_simple(ptr %ptr, i1 %cmp) {
+; CHECK-LABEL: @atomic_and_simple(
+; CHECK-NEXT:  ret.end:
+; CHECK-NEXT:    store atomic i32 0, ptr [[PTR:%.*]] seq_cst, align 4
+; CHECK-NEXT:    [[SPEC_STORE_SELECT:%.*]] = select i1 [[CMP:%.*]], i32 1, i32 0
+; CHECK-NEXT:    store i32 [[SPEC_STORE_SELECT]], ptr [[PTR]], align 4
+; CHECK-NEXT:    ret void
+;
+  store atomic i32 0, ptr %ptr seq_cst, align 4
+  br i1 %cmp, label %if.then, label %ret.end
+
+if.then:
+  store i32 1, ptr %ptr
+  br label %ret.end
+
+ret.end:
+  ret void
+}
+
 ; CHECK: !0 = !{!"branch_weights", i32 3, i32 5}
 !0 = !{!"branch_weights", i32 3, i32 5}