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https://github.com/c64scene-ar/llvm-6502.git
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ec2871f730
The names for instructions inserted were previous dependent on iteration order. By deriving the names from the original instructions, we can avoid instability in tests without resorting to ordered traversals. It also makes the IR mildly easier to read at large scale. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243140 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
2.5 KiB
LLVM
54 lines
2.5 KiB
LLVM
; RUN: opt %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
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; CHECK: derived %obj_to_consume base %obj_to_consume.base
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declare void @foo()
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declare i64 addrspace(1)* @generate_obj()
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declare void @consume_obj(i64 addrspace(1)*)
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define void @test(i32 %condition) gc "statepoint-example" {
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entry:
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br label %loop
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loop:
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; CHECK: loop:
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; CHECK: %safepoint_token1 = call i32 (i64, i32, i64 addrspace(1)* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i64f(i64 0, i32 0, i64 addrspace(1)* ()* @generate_obj, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i3
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; CHECK-NEXT: %obj2 = call i64 addrspace(1)* @llvm.experimental.gc.result
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%safepoint_token1 = call i32 (i64, i32, i64 addrspace(1)* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i64f(i64 0, i32 0, i64 addrspace(1)* ()* @generate_obj, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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%obj2 = call i64 addrspace(1)* @llvm.experimental.gc.result.p1i64(i32 %safepoint_token1)
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switch i32 %condition, label %dest_a [
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i32 0, label %dest_b
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i32 1, label %dest_c
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]
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dest_a:
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br label %merge
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dest_b:
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br label %merge
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dest_c:
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br label %merge
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merge:
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; CHECK: merge:
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; CHECK: %obj_to_consume.base = phi i64 addrspace(1)* [ %obj2, %dest_a ], [ null, %dest_b ], [ null, %dest_c ]
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; CHECK: %obj_to_consume = phi i64 addrspace(1)* [ %obj2, %dest_a ], [ null, %dest_b ], [ null, %dest_c ]
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%obj_to_consume = phi i64 addrspace(1)* [ %obj2, %dest_a ], [ null, %dest_b ], [ null, %dest_c ]
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%safepoint_token3 = call i32 (i64, i32, void (i64 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i64f(i64 0, i32 0, void (i64 addrspace(1)*)* @consume_obj, i32 1, i32 0, i64 addrspace(1)* %obj_to_consume, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %merge.split
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merge.split: ; preds = %merge
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%safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %loop
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}
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; Function Attrs: nounwind
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declare i64 addrspace(1)* @llvm.experimental.gc.result.p1i64(i32) #0
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declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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declare i32 @llvm.experimental.gc.statepoint.p0f_p1i64f(i64, i32, i64 addrspace(1)* ()*, i32, i32, ...)
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declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidp1i64f(i64, i32, void (i64 addrspace(1)*)*, i32, i32, ...)
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