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llvm-project/llvm/test/Transforms/LICM/gc-relocate.ll

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Revert "Mark gc.relocate and gc.result as readnone" As readnone function they become movable and LICM can hoist them out of a loop. As a result in LCSSA form phi node of type token is created. No one is ready that GCRelocate first operand is phi node but expects to be token. GVN test were also updated, it seems it does not do what is expected. Test for LICM is also added. This reverts commit f352463ade6e49c3b0275f296d9190d828b7630b.
2021-03-12 16:32:53 +08:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -basic-aa -licm < %s | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
define i8 addrspace(1)* @test(i8 addrspace(1)* %arg) #0 gc "statepoint-example" personality i32* ()* @wobble {
; CHECK-LABEL: @test(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[BB1:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[TMP:%.*]] = call token (i64, i32, i32 (i32, i8 addrspace(1)*, i32, i32, i32)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32i32p1i8i32i32i32f(i64 1, i32 16, i32 (i32, i8 addrspace(1)*, i32, i32, i32)* nonnull @zot, i32 5, i32 0, i32 undef, i8 addrspace(1)* undef, i32 undef, i32 undef, i32 undef, i32 0, i32 0) [ "deopt"(i32 0, i32 0, i32 0, i32 235, i32 3, i32 32, i32 0, i32 0, i8 addrspace(1)* undef, i32 3, i32 undef, i32 3, float undef, i32 0, i8 addrspace(1)* undef, i32 7, i8* null, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 0, i8 addrspace(1)* undef, i32 4, double undef, i32 7, i8* null, i32 0, i8 addrspace(1)* undef, i32 3, float undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* null, i32 3, i32 -15108, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null), "gc-live"(i8 addrspace(1)* [[ARG:%.*]]) ]
; CHECK-NEXT: br i1 false, label [[BB1]], label [[BB2:%.*]]
; CHECK: bb2:
[LICM] Fix a crash when sinking instructions w/token operands It is not legal to form a phi node with token type. The generic LCSSA construction code handles this correctly - by not forming LCSSA for such cases - but the adhoc fixup implementation in LICM did not. This was noticed in the context of PR49607, but can be demonstrated on ToT with the tweaked test case. This is not specific to gc.relocate btw, it also applies to usage of the preallocated family of intrinsics as well. Differential Revision: https://reviews.llvm.org/D98728
2021-03-18 01:57:33 +08:00
; CHECK-NEXT: [[RES_LE:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[TMP]], i32 0, i32 0) #[[ATTR2:[0-9]+]]
; CHECK-NEXT: ret i8 addrspace(1)* [[RES_LE]]
Revert "Mark gc.relocate and gc.result as readnone" As readnone function they become movable and LICM can hoist them out of a loop. As a result in LCSSA form phi node of type token is created. No one is ready that GCRelocate first operand is phi node but expects to be token. GVN test were also updated, it seems it does not do what is expected. Test for LICM is also added. This reverts commit f352463ade6e49c3b0275f296d9190d828b7630b.
2021-03-12 16:32:53 +08:00
;
bb:
br label %bb1
bb1:
%tmp = call token (i64, i32, i32 (i32, i8 addrspace(1)*, i32, i32, i32)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32i32p1i8i32i32i32f(i64 1, i32 16, i32 (i32, i8 addrspace(1)*, i32, i32, i32)* nonnull @zot, i32 5, i32 0, i32 undef, i8 addrspace(1)* undef, i32 undef, i32 undef, i32 undef, i32 0, i32 0) [ "deopt"(i32 0, i32 0, i32 0, i32 235, i32 3, i32 32, i32 0, i32 0, i8 addrspace(1)* undef, i32 3, i32 undef, i32 3, float undef, i32 0, i8 addrspace(1)* undef, i32 7, i8* null, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 0, i8 addrspace(1)* undef, i32 4, double undef, i32 7, i8* null, i32 0, i8 addrspace(1)* undef, i32 3, float undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* null, i32 3, i32 -15108, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null), "gc-live"(i8 addrspace(1)* %arg) ]
[LICM] Fix a crash when sinking instructions w/token operands It is not legal to form a phi node with token type. The generic LCSSA construction code handles this correctly - by not forming LCSSA for such cases - but the adhoc fixup implementation in LICM did not. This was noticed in the context of PR49607, but can be demonstrated on ToT with the tweaked test case. This is not specific to gc.relocate btw, it also applies to usage of the preallocated family of intrinsics as well. Differential Revision: https://reviews.llvm.org/D98728
2021-03-18 01:57:33 +08:00
%res = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp, i32 0, i32 0) readnone
Revert "Mark gc.relocate and gc.result as readnone" As readnone function they become movable and LICM can hoist them out of a loop. As a result in LCSSA form phi node of type token is created. No one is ready that GCRelocate first operand is phi node but expects to be token. GVN test were also updated, it seems it does not do what is expected. Test for LICM is also added. This reverts commit f352463ade6e49c3b0275f296d9190d828b7630b.
2021-03-12 16:32:53 +08:00
br i1 undef, label %bb1, label %bb2
bb2:
ret i8 addrspace(1)* %res
}
declare i32* @wobble()
declare i32 @zot(i32, i8 addrspace(1)*, i32, i32, i32)
declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32f(i64, i32, void (i32)*, i32, i32, ...)
; Function Attrs: nounwind readnone
declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32) #0
declare token @llvm.experimental.gc.statepoint.p0f_i32i32p1i8i32i32i32f(i64, i32, i32 (i32, i8 addrspace(1)*, i32, i32, i32)*, i32, i32, ...)
attributes #0 = { nounwind readnone }