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| author | Bob Wilson <bob.wilson@apple.com> | 2012-07-02 19:48:45 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2012-07-02 19:48:45 +0000 |
| commit | 30a507a1f5d6a5646dd3481eba6958424415c886 (patch) | |
| tree | 49214966bff88a4ed2e13af11a825c5cc218f3f5 /test/CodeGen/Generic | |
| parent | 6b2bb15bf7c77918adc433646846f6847d421257 (diff) | |
| download | external_llvm-30a507a1f5d6a5646dd3481eba6958424415c886.zip external_llvm-30a507a1f5d6a5646dd3481eba6958424415c886.tar.gz external_llvm-30a507a1f5d6a5646dd3481eba6958424415c886.tar.bz2 | |
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
Diffstat (limited to 'test/CodeGen/Generic')
| -rw-r--r-- | test/CodeGen/Generic/stop-after.ll | 10 |
1 files changed, 10 insertions, 0 deletions
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 |