41d5033eb1
This enabled opaque pointers by default in LLVM. The effect of this is twofold: * If IR that contains *neither* explicit ptr nor %T* types is passed to tools, we will now use opaque pointer mode, unless -opaque-pointers=0 has been explicitly passed. * Users of LLVM as a library will now default to opaque pointers. It is possible to opt-out by calling setOpaquePointers(false) on LLVMContext. A cmake option to toggle this default will not be provided. Frontends or other tools that want to (temporarily) keep using typed pointers should disable opaque pointers via LLVMContext. Differential Revision: https://reviews.llvm.org/D126689
56 lines
1.8 KiB
LLVM
56 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -rewrite-statepoints-for-gc -S | FileCheck %s
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; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S | FileCheck %s
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;; This test is to verify that gc_result from a call statepoint
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;; can have preceding phis in its parent basic block. Unlike
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;; invoke statepoint, call statepoint does not terminate the
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;; block, and thus its gc_result is in the same block with the
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;; call statepoint.
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declare i32 @foo()
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define i32 @test1(i1 %cond, i32 %a) gc "statepoint-example" {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[BRANCH1:%.*]], label [[BRANCH2:%.*]]
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; CHECK: branch1:
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; CHECK-NEXT: [[B:%.*]] = add i32 [[A:%.*]], 1
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; CHECK-NEXT: br label [[MERGE:%.*]]
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; CHECK: branch2:
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; CHECK-NEXT: br label [[MERGE]]
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; CHECK: merge:
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; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[A]], [[BRANCH2]] ], [ [[B]], [[BRANCH1]] ]
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; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(i32 ()) @foo, i32 0, i32 0, i32 0, i32 0)
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; CHECK-NEXT: [[RET1:%.*]] = call i32 @llvm.experimental.gc.result.i32(token [[STATEPOINT_TOKEN]])
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; CHECK-NEXT: ret i32 [[RET1]]
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;
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entry:
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br i1 %cond, label %branch1, label %branch2
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branch1:
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%b = add i32 %a, 1
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br label %merge
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branch2:
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br label %merge
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merge:
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%phi = phi i32 [ %a, %branch2 ], [ %b, %branch1 ]
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%ret = call i32 @foo()
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ret i32 %ret
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}
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; This function is inlined when inserting a poll.
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declare void @do_safepoint()
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define void @gc.safepoint_poll() {
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; CHECK-LABEL: @gc.safepoint_poll(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @do_safepoint()
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; CHECK-NEXT: ret void
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;
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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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