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af0494dc3b
Given that StatepointLowering now uniques derived pointers before putting them in the per-statepoint spill map, we may end up with missing entries for derived pointers when we visit a gc.relocate on a pointer that was de-duplicated away. Fix this by keeping two maps, one mapping gc pointers to their de-duplicated values, and one mapping a de-duplicated value to the slot it is spilled in. llvm-svn: 264320
32 lines
1.7 KiB
LLVM
32 lines
1.7 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Checks for a crash we had when two gc.relocate calls would
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; relocating identical values
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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declare void @f()
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32) #3
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declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32) #3
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define void @test_gcrelocate_uniqueing(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test_gcrelocate_uniqueing
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%tok = tail call token (i64, i32, void ()*, i32, i32, ...)
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@llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 addrspace(1)* %ptr, i32 undef, i32 addrspace(1)* %ptr, i32 addrspace(1)* %ptr)
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%a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 9, i32 9)
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%b = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 10, i32 10)
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ret void
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}
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define void @test_gcptr_uniqueing(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test_gcptr_uniqueing
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%ptr2 = bitcast i32 addrspace(1)* %ptr to i8 addrspace(1)*
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%tok = tail call token (i64, i32, void ()*, i32, i32, ...)
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@llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 addrspace(1)* %ptr, i32 undef, i32 addrspace(1)* %ptr, i8 addrspace(1)* %ptr2)
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%a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 9, i32 9)
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%b = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tok, i32 10, i32 10)
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ret void
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}
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