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Adjust enablement of RewriteStatepointsForGC

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When back merging the changes in 229945 I noticed that I forgot to mark the test cases with the appropriate GC.  We want the rewriting to be off by default (even when manually added to the pass order), not on-by default.  To keep the current test working, mark them as using the statepoint-example GC and whitelist that GC.  

Longer term, we need a better selection mechanism here for both actual usage and testing.  As I migrate more tests to the in tree version of this pass, I will probably need to update the enable/disable logic as well. 





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229954 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Philip Reames 2015-02-20 02:34:49 +00:00
parent 1ba7281189
commit e807289468
2 changed files with 6 additions and 5 deletions
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3
lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
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@ -1900,7 +1900,8 @@ static bool insertParsePoints(Function &F, DominatorTree &DT, Pass *P,
/// point of this function is as an extension point for custom logic.
static bool shouldRewriteStatepointsIn(Function &F) {
// TODO: This should check the GCStrategy
return true;
const std::string StatepointExampleName("statepoint-example");
return StatepointExampleName == F.getGC();
}
bool RewriteStatepointsForGC::runOnFunction(Function &F) {

8
test/Transforms/RewriteStatepointsForGC/basics.ll
View File

@ -4,7 +4,7 @@
declare void @foo()
; Trivial relocation over a single call
define i8 addrspace(1)* @test1(i8 addrspace(1)* %obj) {
define i8 addrspace(1)* @test1(i8 addrspace(1)* %obj) gc "statepoint-example" {
; CHECK-LABEL: @test1
; CHECK-LABEL: entry:
; CHECK-NEXT: gc.statepoint
@ -15,7 +15,7 @@ entry:
}
; Two safepoints in a row (i.e. consistent liveness)
define i8 addrspace(1)* @test2(i8 addrspace(1)* %obj) {
define i8 addrspace(1)* @test2(i8 addrspace(1)* %obj) gc "statepoint-example" {
; CHECK-LABEL: @test2
; CHECK-LABEL: entry:
; CHECK-NEXT: gc.statepoint
@ -29,7 +29,7 @@ entry:
}
; A simple derived pointer
define i8 @test3(i8 addrspace(1)* %obj) {
define i8 @test3(i8 addrspace(1)* %obj) gc "statepoint-example" {
; CHECK-LABEL: entry:
; CHECK-NEXT: getelementptr
; CHECK-NEXT: gc.statepoint
@ -49,7 +49,7 @@ entry:
; Tests to make sure we visit both the taken and untaken predeccessor
; of merge. This was a bug in the dataflow liveness at one point.
define i8 addrspace(1)* @test4(i1 %cmp, i8 addrspace(1)* %obj) {
define i8 addrspace(1)* @test4(i1 %cmp, i8 addrspace(1)* %obj) gc "statepoint-example" {
entry:
br i1 %cmp, label %taken, label %untaken