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Add AArch64 as an experimental target.

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This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.

This initial commit should have support for:
    + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
      (except the late addition CRC instructions).
    + CodeGen features required for C++03 and C99.
    + Compilation for the "small" memory model: code+static data <
      4GB.
    + Absolute and position-independent code.
    + GNU-style (i.e. "__thread") TLS.
    + Debugging information.

The principal omission, currently, is performance tuning.

This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.

Further reviews would be gratefully received.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover
2013-01-31 12:12:40 +00:00
parent d72b4d321e
commit 72062f5744
192 changed files with 45628 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

125
test/CodeGen/AArch64/inline-asm-modifiers.ll Normal file
View File

@@ -0,0 +1,125 @@
; RUN: llc -march=aarch64 -relocation-model=pic < %s | FileCheck %s
; RUN: llc -march=aarch64 -relocation-model=pic -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-ELF %s
@var_simple = hidden global i32 0
@var_got = global i32 0
@var_tlsgd = thread_local global i32 0
@var_tlsld = thread_local(localdynamic) global i32 0
@var_tlsie = thread_local(initialexec) global i32 0
@var_tlsle = thread_local(localexec) global i32 0
define void @test_inline_modifier_L() nounwind {
; CHECK: test_inline_modifier_L:
call void asm sideeffect "add x0, x0, ${0:L}", "S,~{x0}"(i32* @var_simple)
call void asm sideeffect "ldr x0, [x0, ${0:L}]", "S,~{x0}"(i32* @var_got)
call void asm sideeffect "add x0, x0, ${0:L}", "S,~{x0}"(i32* @var_tlsgd)
call void asm sideeffect "add x0, x0, ${0:L}", "S,~{x0}"(i32* @var_tlsld)
call void asm sideeffect "ldr x0, [x0, ${0:L}]", "S,~{x0}"(i32* @var_tlsie)
call void asm sideeffect "add x0, x0, ${0:L}", "S,~{x0}"(i32* @var_tlsle)
; CHECK: add x0, x0, #:lo12:var_simple
; CHECK: ldr x0, [x0, #:got_lo12:var_got]
; CHECK: add x0, x0, #:tlsdesc_lo12:var_tlsgd
; CHECK: add x0, x0, #:dtprel_lo12:var_tlsld
; CHECK: ldr x0, [x0, #:gottprel_lo12:var_tlsie]
; CHECK: add x0, x0, #:tprel_lo12:var_tlsle
; CHECK-ELF: R_AARCH64_ADD_ABS_LO12_NC var_simple
; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC var_got
; CHECK-ELF: R_AARCH64_TLSDESC_ADD_LO12_NC var_tlsgd
; CHECK-ELF: R_AARCH64_TLSLD_ADD_DTPREL_LO12 var_tlsld
; CHECK-ELF: R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC var_tlsie
; CHECK-ELF: R_AARCH64_TLSLE_ADD_TPREL_LO12 var_tlsle
ret void
}
define void @test_inline_modifier_G() nounwind {
; CHECK: test_inline_modifier_G:
call void asm sideeffect "add x0, x0, ${0:G}, lsl #12", "S,~{x0}"(i32* @var_tlsld)
call void asm sideeffect "add x0, x0, ${0:G}, lsl #12", "S,~{x0}"(i32* @var_tlsle)
; CHECK: add x0, x0, #:dtprel_hi12:var_tlsld, lsl #12
; CHECK: add x0, x0, #:tprel_hi12:var_tlsle, lsl #12
; CHECK-ELF: R_AARCH64_TLSLD_ADD_DTPREL_HI12 var_tlsld
; CHECK-ELF: R_AARCH64_TLSLE_ADD_TPREL_HI12 var_tlsle
ret void
}
define void @test_inline_modifier_A() nounwind {
; CHECK: test_inline_modifier_A:
call void asm sideeffect "adrp x0, ${0:A}", "S,~{x0}"(i32* @var_simple)
call void asm sideeffect "adrp x0, ${0:A}", "S,~{x0}"(i32* @var_got)
call void asm sideeffect "adrp x0, ${0:A}", "S,~{x0}"(i32* @var_tlsgd)
call void asm sideeffect "adrp x0, ${0:A}", "S,~{x0}"(i32* @var_tlsie)
; N.b. All tprel and dtprel relocs are modified: lo12 or granules.
; CHECK: adrp x0, var_simple
; CHECK: adrp x0, :got:var_got
; CHECK: adrp x0, :tlsdesc:var_tlsgd
; CHECK: adrp x0, :gottprel:var_tlsie
; CHECK-ELF: R_AARCH64_ADR_PREL_PG_HI21 var_simple
; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE var_got
; CHECK-ELF: R_AARCH64_TLSDESC_ADR_PAGE var_tlsgd
; CHECK-ELF: R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 var_tlsie
ret void
}
define void @test_inline_modifier_wx(i32 %small, i64 %big) nounwind {
; CHECK: test_inline_modifier_wx:
call i32 asm sideeffect "add $0, $0, $0", "=r,0"(i32 %small)
call i32 asm sideeffect "add ${0:w}, ${0:w}, ${0:w}", "=r,0"(i32 %small)
call i32 asm sideeffect "add ${0:x}, ${0:x}, ${0:x}", "=r,0"(i32 %small)
; CHECK: //APP
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
call i64 asm sideeffect "add $0, $0, $0", "=r,0"(i64 %big)
call i64 asm sideeffect "add ${0:w}, ${0:w}, ${0:w}", "=r,0"(i64 %big)
call i64 asm sideeffect "add ${0:x}, ${0:x}, ${0:x}", "=r,0"(i64 %big)
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
call i32 asm sideeffect "add ${0:w}, ${1:w}, ${1:w}", "=r,r"(i32 0)
call i32 asm sideeffect "add ${0:x}, ${1:x}, ${1:x}", "=r,r"(i32 0)
; CHECK: add {{w[0-9]+}}, wzr, wzr
; CHECK: add {{x[0-9]+}}, xzr, xzr
ret void
}
define void @test_inline_modifier_bhsdq() nounwind {
; CHECK: test_inline_modifier_bhsdq:
call float asm sideeffect "ldr ${0:b}, [sp]", "=w"()
call float asm sideeffect "ldr ${0:h}, [sp]", "=w"()
call float asm sideeffect "ldr ${0:s}, [sp]", "=w"()
call float asm sideeffect "ldr ${0:d}, [sp]", "=w"()
call float asm sideeffect "ldr ${0:q}, [sp]", "=w"()
; CHECK: ldr b0, [sp]
; CHECK: ldr h0, [sp]
; CHECK: ldr s0, [sp]
; CHECK: ldr d0, [sp]
; CHECK: ldr q0, [sp]
call double asm sideeffect "ldr ${0:b}, [sp]", "=w"()
call double asm sideeffect "ldr ${0:h}, [sp]", "=w"()
call double asm sideeffect "ldr ${0:s}, [sp]", "=w"()
call double asm sideeffect "ldr ${0:d}, [sp]", "=w"()
call double asm sideeffect "ldr ${0:q}, [sp]", "=w"()
; CHECK: ldr b0, [sp]
; CHECK: ldr h0, [sp]
; CHECK: ldr s0, [sp]
; CHECK: ldr d0, [sp]
; CHECK: ldr q0, [sp]
ret void
}
define void @test_inline_modifier_c() nounwind {
; CHECK: test_inline_modifier_c:
call void asm sideeffect "adr x0, ${0:c}", "i"(i32 3)
; CHECK: adr x0, 3
ret void
}