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
151 lines
5.8 KiB
LLVM
151 lines
5.8 KiB
LLVM
; RUN: opt %s -rewrite-statepoints-for-gc -rs4gc-use-deopt-bundles -S 2>&1 | FileCheck %s
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declare void @use_obj16(i16 addrspace(1)*) "gc-leaf-function"
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declare void @use_obj32(i32 addrspace(1)*) "gc-leaf-function"
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declare void @use_obj64(i64 addrspace(1)*) "gc-leaf-function"
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declare void @do_safepoint()
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define void @test_gep_const(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_const
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 15
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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define void @test_gep_idx(i32 addrspace(1)* %base, i32 %idx) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_idx
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 %idx
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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define void @test_bitcast(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_bitcast
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entry:
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%ptr = bitcast i32 addrspace(1)* %base to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj64(i64 addrspace(1)* %ptr)
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ret void
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}
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define void @test_bitcast_gep(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_bitcast_gep
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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ret void
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}
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define void @test_intersecting_chains(i32 addrspace(1)* %base, i32 %idx) gc "statepoint-example" {
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; CHECK-LABEL: test_intersecting_chains
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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%ptr.cast2 = bitcast i32 addrspace(1)* %ptr.gep to i16 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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}
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define void @test_cost_threshold(i32 addrspace(1)* %base, i32 %idx1, i32 %idx2, i32 %idx3) gc "statepoint-example" {
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; CHECK-LABEL: test_cost_threshold
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.gep2 = getelementptr i32, i32 addrspace(1)* %ptr.gep, i32 %idx1
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%ptr.gep3 = getelementptr i32, i32 addrspace(1)* %ptr.gep2, i32 %idx2
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%ptr.gep4 = getelementptr i32, i32 addrspace(1)* %ptr.gep3, i32 %idx3
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep4 to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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ret void
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}
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define void @test_two_derived(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_two_derived
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr2 = getelementptr i32, i32 addrspace(1)* %base, i32 12
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %ptr)
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call void @use_obj32(i32 addrspace(1)* %ptr2)
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ret void
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}
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define void @test_gep_smallint_array([3 x i32] addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_smallint_array
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entry:
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%ptr = getelementptr [3 x i32], [3 x i32] addrspace(1)* %base, i32 0, i32 2
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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declare i32 @fake_personality_function()
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define void @test_invoke(i32 addrspace(1)* %base) gc "statepoint-example" personality i32 ()* @fake_personality_function {
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; CHECK-LABEL: test_invoke
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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%ptr.cast2 = bitcast i32 addrspace(1)* %ptr.gep to i16 addrspace(1)*
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invoke void @do_safepoint() [ "deopt"() ]
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to label %normal unwind label %exception
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normal: ; preds = %entry
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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exception: ; preds = %entry
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%landing_pad4 = landingpad { i8*, i32 }
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cleanup
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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}
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define void @test_loop(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_loop
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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br label %loop
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loop: ; preds = %loop, %entry
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call void @use_obj32(i32 addrspace(1)* %ptr.gep)
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call void @do_safepoint() [ "deopt"() ]
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br label %loop
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}
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define void @test_too_long(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_too_long
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.gep1 = getelementptr i32, i32 addrspace(1)* %ptr.gep, i32 15
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%ptr.gep2 = getelementptr i32, i32 addrspace(1)* %ptr.gep1, i32 15
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%ptr.gep3 = getelementptr i32, i32 addrspace(1)* %ptr.gep2, i32 15
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%ptr.gep4 = getelementptr i32, i32 addrspace(1)* %ptr.gep3, i32 15
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%ptr.gep5 = getelementptr i32, i32 addrspace(1)* %ptr.gep4, i32 15
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%ptr.gep6 = getelementptr i32, i32 addrspace(1)* %ptr.gep5, i32 15
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%ptr.gep7 = getelementptr i32, i32 addrspace(1)* %ptr.gep6, i32 15
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%ptr.gep8 = getelementptr i32, i32 addrspace(1)* %ptr.gep7, i32 15
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%ptr.gep9 = getelementptr i32, i32 addrspace(1)* %ptr.gep8, i32 15
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%ptr.gep10 = getelementptr i32, i32 addrspace(1)* %ptr.gep9, i32 15
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%ptr.gep11 = getelementptr i32, i32 addrspace(1)* %ptr.gep10, i32 15
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call void @do_safepoint() [ "deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %ptr.gep11)
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ret void
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}
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