923cc2d43b
Summary: The module splitting used for `-flto-partitions=8` support (which is passed by default) did not correctly handle aliases. We mainly need to do two things: keep the aliases in the they are used in and externalize them. Internalize linkage needs to be handled conservatively. This is needed because these aliases show up in PGO contexts. --------- Co-authored-by: Shilei Tian <i@tianshilei.me>
58 lines
1.4 KiB
LLVM
58 lines
1.4 KiB
LLVM
; RUN: llvm-split -o %t %s -j 3 -mtriple amdgcn-amd-amdhsa
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; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK0 %s
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; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK1 %s
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; RUN: llvm-dis -o - %t2 | FileCheck --check-prefix=CHECK2 %s
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; 3 kernels with each their own dependencies should go into 3
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; distinct partitions. Aliases should follow their aliasee's partition
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; and not be cleaned up even if unused in that partition.
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; CHECK0-NOT: @HelperA_alias = {{.*}}alias
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; CHECK0-NOT: define
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; CHECK0: define amdgpu_kernel void @C
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; CHECK0: define internal void @HelperC
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; CHECK0-NOT: @HelperA_alias = {{.*}}alias
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; CHECK0-NOT: define
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; CHECK1-NOT: @HelperA_alias = {{.*}}alias
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; CHECK1-NOT: define
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; CHECK1: define amdgpu_kernel void @B
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; CHECK1: define internal void @HelperB
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; CHECK1-NOT: @HelperA_alias = {{.*}}alias
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; CHECK1-NOT: define
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; CHECK2: @HelperA_alias = hidden alias void (), ptr @HelperA
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; CHECK2-NOT: define
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; CHECK2: define amdgpu_kernel void @A
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; CHECK2: define hidden void @HelperA
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; CHECK2-NOT: define
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@HelperA_alias = internal alias void (), ptr @HelperA
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define amdgpu_kernel void @A() {
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call void @HelperA()
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ret void
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}
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define internal void @HelperA() {
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ret void
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}
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define amdgpu_kernel void @B() {
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call void @HelperB()
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ret void
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}
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define internal void @HelperB() {
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ret void
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}
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define amdgpu_kernel void @C() {
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call void @HelperC()
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ret void
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}
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define internal void @HelperC() {
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ret void
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}
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