25ec1a3e60
Summary: This is a step towards using operand bundles to carry deopt state till RewriteStatepointsForGC. The change adds a flag to RewriteStatepointsForGC that teaches it to pick up deopt state from a `"deopt"` operand bundle attached to the `call` or `invoke` it is wrapping. The command line flag added, `-rs4gc-use-deopt-bundles`, will only exist for a short while. Once we are able to pipe deopt bundle state through the full optimization pipeline without problems, we will "constant fold" `-rs4gc-use-deopt-bundles` to `true`. Reviewers: swaroop.sridhar, reames Subscribers: llvm-commits, sanjoy Differential Revision: http://reviews.llvm.org/D13372 llvm-svn: 250489
66 lines
3.1 KiB
LLVM
66 lines
3.1 KiB
LLVM
; RUN: opt -S -rewrite-statepoints-for-gc -rs4gc-use-deopt-bundles < %s | FileCheck %s
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declare void @g()
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declare i32 @h()
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define i32 addrspace(1)* @f0(i32 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: @f0(
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entry:
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; CHECK: [[TOKEN_0:%[^ ]+]] = call i32 {{[^@]*}} @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @g, i32 0, i32 0, i32 0, i32 1, i32 100, i32 addrspace(1)* %arg)
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call void @g() [ "deopt"(i32 100) ]
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; CHECK: %arg.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 [[TOKEN_0]], i32 8, i32 8)
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ret i32 addrspace(1)* %arg
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}
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define i32 addrspace(1)* @f1(i32 addrspace(1)* %arg) gc "statepoint-example" personality i32 8 {
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; CHECK-LABEL: @f1(
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entry:
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; CHECK: [[TOKEN_1:%[^ ]+]] = invoke i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @g, i32 0, i32 0, i32 0, i32 1, i32 100, i32 addrspace(1)* %arg)
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invoke void @g() [ "deopt"(i32 100) ] to label %normal_dest unwind label %unwind_dest
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normal_dest:
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; CHECK: %arg.relocated1 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 [[TOKEN_1]], i32 8, i32 8)
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ret i32 addrspace(1)* %arg
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unwind_dest:
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%lpad = landingpad { i8*, i32 } cleanup
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resume { i8*, i32 } undef
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}
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define i32 addrspace(1)* @f2(i32 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: @f2(
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entry:
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; CHECK: [[TOKEN_2:%[^ ]+]] = call i32 (i64, i32, i32 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32f(i64 2882400000, i32 0, i32 ()* @h, i32 0, i32 0, i32 0, i32 1, i32 100, i32 addrspace(1)* %arg)
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%val = call i32 @h() [ "deopt"(i32 100) ]
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; CHECK: [[RESULT_F2:%[^ ]+]] = call i32 @llvm.experimental.gc.result.i32(i32 [[TOKEN_2]])
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; CHECK: %arg.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 [[TOKEN_2]], i32 8, i32 8)
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; CHECK: %arg.relocated.casted = bitcast i8 addrspace(1)* %arg.relocated to i32 addrspace(1)*
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store i32 %val, i32 addrspace(1)* %arg
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; CHECK: store i32 [[RESULT_F2]], i32 addrspace(1)* %arg.relocated.casted
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ret i32 addrspace(1)* %arg
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}
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define i32 addrspace(1)* @f3(i32 addrspace(1)* %arg) gc "statepoint-example" personality i32 8 {
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; CHECK-LABEL: @f3(
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entry:
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; CHECK: [[TOKEN_3:%[^ ]+]] = invoke i32 (i64, i32, i32 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32f(i64 2882400000, i32 0, i32 ()* @h, i32 0, i32 0, i32 0, i32 1, i32 100, i32 addrspace(1)* %arg)
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%val = invoke i32 @h() [ "deopt"(i32 100) ] to label %normal_dest unwind label %unwind_dest
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normal_dest:
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; CHECK: [[RESULT_F3:%[^ ]+]] = call i32 @llvm.experimental.gc.result.i32(i32 [[TOKEN_3]])
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; CHECK: [[ARG_RELOCATED:%[^ ]+]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(i32 [[TOKEN_3]], i32 8, i32 8)
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; CHECK: [[ARG_RELOCATED_CASTED:%[^ ]+]] = bitcast i8 addrspace(1)* [[ARG_RELOCATED]] to i32 addrspace(1)*
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store i32 %val, i32 addrspace(1)* %arg
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; CHECK: store i32 [[RESULT_F3]], i32 addrspace(1)* [[ARG_RELOCATED_CASTED]]
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ret i32 addrspace(1)* %arg
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unwind_dest:
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%lpad = landingpad { i8*, i32 } cleanup
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resume { i8*, i32 } undef
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}
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