From 30a507a1f5d6a5646dd3481eba6958424415c886 Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Mon, 2 Jul 2012 19:48:45 +0000 Subject: Extend TargetPassConfig to allow running only a subset of the normal passes. This is still a work in progress but I believe it is currently good enough to fix PR13122 "Need unit test driver for codegen IR passes". For example, you can run llc with -stop-after=loop-reduce to have it dump out the IR after running LSR. Serializing machine-level IR is not yet supported but we have some patches in progress for that. The plan is to serialize the IR to a YAML file, containing separate sections for the LLVM IR, machine-level IR, and whatever other info is needed. Chad suggested that we stash the stop-after pass in the YAML file and use that instead of the start-after option to figure out where to restart the compilation. I think that's a great idea, but since it's not implemented yet I put the -start-after option into this patch for testing purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159570 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/Generic/stop-after.ll | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 test/CodeGen/Generic/stop-after.ll (limited to 'test') diff --git a/test/CodeGen/Generic/stop-after.ll b/test/CodeGen/Generic/stop-after.ll new file mode 100644 index 0000000..557e097 --- /dev/null +++ b/test/CodeGen/Generic/stop-after.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s -debug-pass=Structure -stop-after=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=STOP +; RUN: llc < %s -debug-pass=Structure -start-after=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=START + +; STOP: -loop-reduce -print-module +; STOP: Loop Strength Reduction +; STOP-NEXT: Machine Function Analysis + +; START: -machine-branch-prob -gc-lowering +; START: FunctionPass Manager +; START-NEXT: Lower Garbage Collection Instructions -- cgit v1.1