xray-empty-firstmbb.mir does not test the intended code path. Change
xray-instruction-threshold to 0 to exercise the code path.
Delete xray-empty-function.mir . Empty MachineFunction does not work.
Various passes (e.g. MachineDominatorTree) assume the presence of an
entry block.
--- |
- define i32 @foo() noinline uwtable "xray-instruction-threshold"="1" {
+ define i32 @foo() noinline uwtable "xray-instruction-threshold"="0" {
entry:
unreachable
}
+++ /dev/null
-# RUN: llc -run-pass xray-instrumentation -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s
-#
-# Make sure we can handle empty functions.
----
-name: empty
-tracksRegLiveness: true
-liveins:
- - { reg: '$edi'}
-body: |
- bb.0:
- ; CHECK-NOT: PATCHABLE_FUNCTION_ENTER
-...
-