mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 03:29:40 +00:00
ead2d1fbe0
Summary: This change adds two new parameters to the statepoint intrinsic, `i64 id` and `i32 num_patch_bytes`. `id` gets propagated to the ID field in the generated StackMap section. If the `num_patch_bytes` is non-zero then the statepoint is lowered to `num_patch_bytes` bytes of nops instead of a call (the spill and reload code remains unchanged). A non-zero `num_patch_bytes` is useful in situations where a language runtime requires complete control over how a call is lowered. This change brings statepoints one step closer to patchpoints. With some additional work (that is not part of this patch) it should be possible to get rid of `TargetOpcode::STATEPOINT` altogether. PlaceSafepoints generates `statepoint` wrappers with `id` set to `0xABCDEF00` (the old default value for the ID reported in the stackmap) and `num_patch_bytes` set to `0`. This can be made more sophisticated later. Reviewers: reames, pgavlin, swaroop.sridhar, AndyAyers Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9546 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237214 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 i32 (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(i32 %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 i32 (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(i32 %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 i32 (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(i32 %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 i32 (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(i32 %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 i32 (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(i32 %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 i32 @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
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declare i32* @llvm.experimental.gc.relocate.p0i32(i32, i32, i32)
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declare float* @llvm.experimental.gc.relocate.p0f32(i32, i32, i32)
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declare [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(i32, i32, i32)
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declare <3 x i32>* @llvm.experimental.gc.relocate.p0v3i32(i32, i32, i32)
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declare %struct.test* @llvm.experimental.gc.relocate.p0struct.test(i32, i32, i32)
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