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https://github.com/RPCSX/llvm.git
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955318d58d
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256443 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
2.9 KiB
LLVM
58 lines
2.9 KiB
LLVM
; RUN: opt -verify -S < %s
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; Tests the name mangling performed by the codepath following
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; getMangledTypeStr(). Only tests that code with the various manglings
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; run fine: doesn't actually test the mangling with the type of the
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; arguments. Meant to serve as an example-document on how the user
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; should do name manglings.
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; Exercise the most general case, llvm_anyptr_type, using gc.relocate
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; and gc.statepoint. Note that it has nothing to do with gc.*
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; functions specifically: any function that accepts llvm_anyptr_type
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; will serve the purpose.
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; function and integer
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define i32* @test_iAny(i32* %v) gc "statepoint-example" {
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %v)
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%v-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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ret i32* %v-new
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}
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; float
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define float* @test_fAny(float* %v) gc "statepoint-example" {
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, float* %v)
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%v-new = call float* @llvm.experimental.gc.relocate.p0f32(token %tok, i32 7, i32 7)
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ret float* %v-new
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}
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; array of integers
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define [3 x i32]* @test_aAny([3 x i32]* %v) gc "statepoint-example" {
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %v)
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%v-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token %tok, i32 7, i32 7)
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ret [3 x i32]* %v-new
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}
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; vector of integers
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define <3 x i32>* @test_vAny(<3 x i32>* %v) gc "statepoint-example" {
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, <3 x i32>* %v)
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%v-new = call <3 x i32>* @llvm.experimental.gc.relocate.p0v3i32(token %tok, i32 7, i32 7)
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ret <3 x i32>* %v-new
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}
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%struct.test = type { i32, i1 }
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; struct
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define %struct.test* @test_struct(%struct.test* %v) gc "statepoint-example" {
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, %struct.test* %v)
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%v-new = call %struct.test* @llvm.experimental.gc.relocate.p0struct.test(token %tok, i32 7, i32 7)
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ret %struct.test* %v-new
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}
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declare zeroext i1 @return_i1()
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declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
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declare i32* @llvm.experimental.gc.relocate.p0i32(token, i32, i32)
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declare float* @llvm.experimental.gc.relocate.p0f32(token, i32, i32)
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declare [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token, i32, i32)
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declare <3 x i32>* @llvm.experimental.gc.relocate.p0v3i32(token, i32, i32)
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declare %struct.test* @llvm.experimental.gc.relocate.p0struct.test(token, i32, i32)
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