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https://github.com/c64scene-ar/llvm-6502.git
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44d65eac43
Summary: As added initially, statepoints required their call targets to be a constant pointer null if ``numPatchBytes`` was non-zero. This turns out to be a problem ergonomically, since there is no way to mark patchable statepoints as calling a (readable) symbolic value. This change remove the restriction of requiring ``null`` call targets for patchable statepoints, and changes PlaceSafepoints to maintain the symbolic call target through its transformation. Reviewers: reames, swaroop.sridhar Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D11550 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243502 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.3 KiB
LLVM
45 lines
1.3 KiB
LLVM
; RUN: opt -place-safepoints -S < %s | FileCheck %s
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declare void @f()
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declare i32 @personality_function()
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define void @test_id() gc "statepoint-example" personality i32 ()* @personality_function {
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; CHECK-LABEL: @test_id(
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entry:
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; CHECK-LABEL: entry:
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; CHECK: invoke i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 100, i32 0, void ()* @f
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invoke void @f() "statepoint-id"="100" to label %normal_return unwind label %exceptional_return
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normal_return:
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ret void
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exceptional_return:
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%landing_pad4 = landingpad {i8*, i32} cleanup
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ret void
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}
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define void @test_num_patch_bytes() gc "statepoint-example" personality i32 ()* @personality_function {
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; CHECK-LABEL: @test_num_patch_bytes(
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entry:
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; CHECK-LABEL: entry:
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; CHECK: invoke i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 99, void ()* @f,
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invoke void @f() "statepoint-num-patch-bytes"="99" to label %normal_return unwind label %exceptional_return
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normal_return:
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ret void
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exceptional_return:
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%landing_pad4 = landingpad {i8*, i32} cleanup
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ret void
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}
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declare void @do_safepoint()
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define void @gc.safepoint_poll() {
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entry:
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call void @do_safepoint()
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ret void
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}
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; CHECK-NOT: statepoint-id
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; CHECK-NOT: statepoint-num-patch_bytes
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