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c60ad3e1fe
Summary: This patch changes gc.statepoint intrinsic's return type to token type instead of i32 type. Using token types could prevent LLVM to merge different gc.statepoint nodes into PHI nodes and cause further problems with gc relocations. The patch also changes the way on how gc.relocate and gc.result look for their corresponding gc.statepoint on unwind path. The current implementation uses the selector value extracted from a { i8*, i32 } landingpad as a hook to find the gc.statepoint, while the patch directly uses a token type landingpad (http://reviews.llvm.org/D15405) to find the gc.statepoint.
Reviewers: sanjoy, JosephTremoulet, pgavlin, igor-laevsky, mjacob
Subscribers: reames, mjacob, sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D15662
llvm-svn: 256443
20 lines
817 B
LLVM
20 lines
817 B
LLVM
; RUN: not opt -verify 2>&1 < %s | FileCheck %s
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; CHECK: gc.statepoint: mismatch in number of call arguments
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declare zeroext i1 @return0i1()
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; Function Attrs: nounwind
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declare token @llvm.experimental.gc.statepoint.p0f0i1f(i64, i32, i1 ()*, i32, i32, ...) #0
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; Function Attrs: nounwind
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declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32) #0
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define i32 addrspace(1)* @0(i32 addrspace(1)* %dparam) {
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%a00 = load i32, i32 addrspace(1)* %dparam
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%to0 = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f0i1f(i64 0, i32 0, i1 ()* @return0i1, i32 9, i32 0, i2 0, i32 addrspace(1)* %dparam)
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%relocate = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %to0, i32 2, i32 6)
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ret i32 addrspace(1)* %relocate
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}
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attributes #0 = { nounwind } |