c87bd2d8eb
A dynamic linker with lazy binding support may need to handle variant PCS function symbols specially, so an ELF symbol table marking STO_AARCH64_VARIANT_PCS [1] was added to address this. Function symbols that follow the vector PCS are marked via the .variant_pcs assembler directive, which takes a single parameter specifying the symbol name and sets the STO_AARCH64_VARIANT_PCS st_other flag in the object file. [1] https://github.com/ARM-software/abi-aa/blob/master/aaelf64/aaelf64.rst#st-other-values Reviewed By: sdesmalen Differential Revision: https://reviews.llvm.org/D89138
52 lines
1.5 KiB
LLVM
52 lines
1.5 KiB
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve -o - %s | FileCheck %s --check-prefix=CHECK-ASM
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve -filetype=obj -o - %s \
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; RUN: | llvm-readobj --symbols - | FileCheck %s --check-prefix=CHECK-OBJ
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define i32 @base_pcs() {
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; CHECK-ASM-LABEL: base_pcs:
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; CHECK-ASM-NOT: .variant_pcs
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; CHECK-OBJ-LABEL: Name: base_pcs
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; CHECK-OBJ: Other: 0
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ret i32 42
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}
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define aarch64_vector_pcs <4 x i32> @neon_vector_pcs_1(<4 x i32> %arg) {
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; CHECK-ASM: .variant_pcs neon_vector_pcs_1
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; CHECK-ASM-NEXT: neon_vector_pcs_1:
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; CHECK-OBJ-LABEL: Name: neon_vector_pcs_1
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; CHECK-OBJ: Other [ (0x80)
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ret <4 x i32> %arg
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}
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define <vscale x 4 x i32> @sve_vector_pcs_1() {
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; CHECK-ASM: .variant_pcs sve_vector_pcs_1
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; CHECK-ASM-NEXT: sve_vector_pcs_1:
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; CHECK-OBJ-LABEL: Name: sve_vector_pcs_1
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; CHECK-OBJ: Other [ (0x80)
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ret <vscale x 4 x i32> undef
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}
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define <vscale x 4 x i1> @sve_vector_pcs_2() {
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; CHECK-ASM: .variant_pcs sve_vector_pcs_2
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; CHECK-ASM-NEXT: sve_vector_pcs_2:
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; CHECK-OBJ-LABEL: Name: sve_vector_pcs_2
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; CHECK-OBJ: Other [ (0x80)
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ret <vscale x 4 x i1> undef
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}
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define void @sve_vector_pcs_3(<vscale x 4 x i32> %arg) {
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; CHECK-ASM: .variant_pcs sve_vector_pcs_3
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; CHECK-ASM-NEXT: sve_vector_pcs_3:
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; CHECK-OBJ-LABEL: Name: sve_vector_pcs_3
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; CHECK-OBJ: Other [ (0x80)
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ret void
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}
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define void @sve_vector_pcs_4(<vscale x 4 x i1> %arg) {
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; CHECK-ASM: .variant_pcs sve_vector_pcs_4
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; CHECK-ASM-NEXT: sve_vector_pcs_4:
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; CHECK-OBJ-LABEL: Name: sve_vector_pcs_4
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; CHECK-OBJ: Other [ (0x80)
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ret void
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}
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