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llvm-project/llvm/test/CodeGen/AArch64/arm64-aapcs.ll

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[AArch64] Enable PostRAScheduler for AArch64 generic build. Disable post-ra scheduler for perturbed tests to appease the bots and to preserve the history of the tests. http://reviews.llvm.org/D15652 llvm-svn: 256158
2015-12-21 22:43:45 +08:00
; RUN: llc -mtriple=arm64-linux-gnu -enable-misched=false -disable-post-ra < %s | FileCheck %s
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
@var = global i32 0, align 4
AArch64: Add test for returning [2 x i64] in registers. NFC. llvm-svn: 235228
2015-04-18 05:31:25 +08:00
; CHECK-LABEL: @test_i128_align
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
define i128 @test_i128_align(i32, i128 %arg, i32 %after) {
store i32 %after, i32* @var, align 4
; CHECK: str w4, [{{x[0-9]+}}, :lo12:var]
ret i128 %arg
; CHECK: mov x0, x2
; CHECK: mov x1, x3
}
AArch64: Add test for returning [2 x i64] in registers. NFC. llvm-svn: 235228
2015-04-18 05:31:25 +08:00
; CHECK-LABEL: @test_i64x2_align
define [2 x i64] @test_i64x2_align(i32, [2 x i64] %arg, i32 %after) {
store i32 %after, i32* @var, align 4
; CHECK: str w3, [{{x[0-9]+}}, :lo12:var]
ret [2 x i64] %arg
; CHECK: mov x0, x1
; CHECK: mov x1, x2
}
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
@var64 = global i64 0, align 8
; Check stack slots are 64-bit at all times.
define void @test_stack_slots([8 x i32], i1 %bool, i8 %char, i16 %short,
i32 %int, i64 %long) {
%ext_bool = zext i1 %bool to i64
store volatile i64 %ext_bool, i64* @var64, align 8
[ARM64-BE] Make big endian (scalar) argument passing work correctly. This completes the port of r204814 (cpirker "AArch64_BE function argument passing for ARM ABI") from AArch64 to ARM64, and fixes a bunch of issues found during later development along the way. The biggest of these was that the alignment fixup logic wasn't replicated into all the places it should have been. llvm-svn: 208192
2014-05-07 19:28:36 +08:00
; CHECK: ldrb w[[EXT:[0-9]+]], [sp]
[DAGCombiner] Attempt to mask vectors before zero extension instead of after. For cases where we TRUNCATE and then ZERO_EXTEND to a larger size (often from vector legalization), see if we can mask the source data and then ZERO_EXTEND (instead of after a ANY_EXTEND). This can help avoid having to generate a larger mask, and possibly applying it to several sub-vectors. (zext (truncate x)) -> (zext (and(x, m)) Includes a minor patch to SystemZ to better recognise 8/16-bit zero extension patterns from RISBG bit-extraction code. This is the first of a number of minor patches to help improve the conversion of byte masks to clear mask shuffles. Differential Revision: http://reviews.llvm.org/D11764 llvm-svn: 245160
2015-08-15 21:27:30 +08:00
; Part of last store. Blasted scheduler.
; CHECK: ldr [[LONG:x[0-9]+]], [sp, #32]
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; CHECK: and x[[EXTED:[0-9]+]], x[[EXT]], #0x1
; CHECK: str x[[EXTED]], [{{x[0-9]+}}, :lo12:var64]
%ext_char = zext i8 %char to i64
store volatile i64 %ext_char, i64* @var64, align 8
; CHECK: ldrb w[[EXT:[0-9]+]], [sp, #8]
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
%ext_short = zext i16 %short to i64
store volatile i64 %ext_short, i64* @var64, align 8
; CHECK: ldrh w[[EXT:[0-9]+]], [sp, #16]
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
%ext_int = zext i32 %int to i64
store volatile i64 %ext_int, i64* @var64, align 8
[ARM64-BE] Make big endian (scalar) argument passing work correctly. This completes the port of r204814 (cpirker "AArch64_BE function argument passing for ARM ABI") from AArch64 to ARM64, and fixes a bunch of issues found during later development along the way. The biggest of these was that the alignment fixup logic wasn't replicated into all the places it should have been. llvm-svn: 208192
2014-05-07 19:28:36 +08:00
; CHECK: ldr{{b?}} w[[EXT:[0-9]+]], [sp, #24]
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
store volatile i64 %long, i64* @var64, align 8
; CHECK: str [[LONG]], [{{x[0-9]+}}, :lo12:var64]
ret void
}
; Make sure the callee does extensions (in the absence of zext/sext
; keyword on args) while we're here.
define void @test_extension(i1 %bool, i8 %char, i16 %short, i32 %int) {
%ext_bool = zext i1 %bool to i64
store volatile i64 %ext_bool, i64* @var64
[DAGCombiner] Attempt to mask vectors before zero extension instead of after. For cases where we TRUNCATE and then ZERO_EXTEND to a larger size (often from vector legalization), see if we can mask the source data and then ZERO_EXTEND (instead of after a ANY_EXTEND). This can help avoid having to generate a larger mask, and possibly applying it to several sub-vectors. (zext (truncate x)) -> (zext (and(x, m)) Includes a minor patch to SystemZ to better recognise 8/16-bit zero extension patterns from RISBG bit-extraction code. This is the first of a number of minor patches to help improve the conversion of byte masks to clear mask shuffles. Differential Revision: http://reviews.llvm.org/D11764 llvm-svn: 245160
2015-08-15 21:27:30 +08:00
; CHECK: and w[[EXT:[0-9]+]], w0, #0x1
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
%ext_char = sext i8 %char to i64
store volatile i64 %ext_char, i64* @var64
ARM64: [su]xtw use W regs as inputs, not X regs. Update the SXT[BHW]/UXTW instruction aliases and the shifted reg addressing mode handling. PR19455 and rdar://16650642 llvm-svn: 206495
2014-04-18 04:47:31 +08:00
; CHECK: sxtb [[EXT:x[0-9]+]], w1
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; CHECK: str [[EXT]], [{{x[0-9]+}}, :lo12:var64]
%ext_short = zext i16 %short to i64
store volatile i64 %ext_short, i64* @var64
[DAGCombiner] Attempt to mask vectors before zero extension instead of after. For cases where we TRUNCATE and then ZERO_EXTEND to a larger size (often from vector legalization), see if we can mask the source data and then ZERO_EXTEND (instead of after a ANY_EXTEND). This can help avoid having to generate a larger mask, and possibly applying it to several sub-vectors. (zext (truncate x)) -> (zext (and(x, m)) Includes a minor patch to SystemZ to better recognise 8/16-bit zero extension patterns from RISBG bit-extraction code. This is the first of a number of minor patches to help improve the conversion of byte masks to clear mask shuffles. Differential Revision: http://reviews.llvm.org/D11764 llvm-svn: 245160
2015-08-15 21:27:30 +08:00
; CHECK: and w[[EXT:[0-9]+]], w2, #0xffff
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
%ext_int = zext i32 %int to i64
store volatile i64 %ext_int, i64* @var64
AArch64: use 32-bit MOV rather than UBFX to truncate registers. It's potentially more efficient on Cyclone, and from the optimization guides & schedulers looks like it has no effect on Cortex-A53 or A57. In general you'd expect a MOV to be about the most efficient instruction with its semantics, even though the official "UXTW" alias is really a UBFX. llvm-svn: 243576
2015-07-30 05:34:32 +08:00
; CHECK: mov w[[EXT:[0-9]+]], w3
; CHECK: str x[[EXT]], [{{x[0-9]+}}, :lo12:var64]
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
ret void
}
declare void @variadic(i32 %a, ...)
; Under AAPCS variadic functions have the same calling convention as
; others. The extra arguments should go in registers rather than on the stack.
define void @test_variadic() {
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction See r230786 and r230794 for similar changes to gep and load respectively. Call is a bit different because it often doesn't have a single explicit type - usually the type is deduced from the arguments, and just the return type is explicit. In those cases there's no need to change the IR. When that's not the case, the IR usually contains the pointer type of the first operand - but since typed pointers are going away, that representation is insufficient so I'm just stripping the "pointerness" of the explicit type away. This does make the IR a bit weird - it /sort of/ reads like the type of the first operand: "call void () %x(" but %x is actually of type "void ()*" and will eventually be just of type "ptr". But this seems not too bad and I don't think it would benefit from repeating the type ("void (), void () * %x(" and then eventually "void (), ptr %x(") as has been done with gep and load. This also has a side benefit: since the explicit type is no longer a pointer, there's no ambiguity between an explicit type and a function that returns a function pointer. Previously this case needed an explicit type (eg: a function returning a void() function was written as "call void () () * @x(" rather than "call void () * @x(" because of the ambiguity between a function returning a pointer to a void() function and a function returning void). No ambiguity means even function pointer return types can just be written alone, without writing the whole function's type. This leaves /only/ the varargs case where the explicit type is required. Given the special type syntax in call instructions, the regex-fu used for migration was a bit more involved in its own unique way (as every one of these is) so here it is. Use it in conjunction with the apply.sh script and associated find/xargs commands I've provided in rr230786 to migrate your out of tree tests. Do let me know if any of this doesn't cover your cases & we can iterate on a more general script/regexes to help others with out of tree tests. About 9 test cases couldn't be automatically migrated - half of those were functions returning function pointers, where I just had to manually delete the function argument types now that we didn't need an explicit function type there. The other half were typedefs of function types used in calls - just had to manually drop the * from those. import fileinput import sys import re pat = re.compile(r'((?:=|:|^|\s)call\s(?:[^@]*?))(\s*$|\s*(?:(?:\[\[[a-zA-Z0-9_]+\]\]|[@%](?:(")?[\\\?@a-zA-Z0-9_.]*?(?(3)"|)|{{.*}}))(?:\(|$)|undef|inttoptr|bitcast|null|asm).*$)') addrspace_end = re.compile(r"addrspace\(\d+\)\s*\*$") func_end = re.compile("(?:void.*|\)\s*)\*$") def conv(match, line): if not match or re.search(addrspace_end, match.group(1)) or not re.search(func_end, match.group(1)): return line return line[:match.start()] + match.group(1)[:match.group(1).rfind('*')].rstrip() + match.group(2) + line[match.end():] for line in sys.stdin: sys.stdout.write(conv(re.search(pat, line), line)) llvm-svn: 235145
2015-04-17 07:24:18 +08:00
call void(i32, ...) @variadic(i32 0, i64 1, double 2.0)
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; CHECK: fmov d0, #2.0
ARM64: use 32-bit moves for constants where possible. If we know that a particular 64-bit constant has all high bits zero, then we can rely on the fact that 32-bit ARM64 instructions automatically zero out the high bits of an x-register. This gives the expansion logic less constraints to satisfy and so sometimes allows it to pick better sequences. Came up while porting test/CodeGen/AArch64/movw-consts.ll: this will allow a 32-bit MOVN to be used in @test8 soon. llvm-svn: 206379
2014-04-16 19:52:51 +08:00
; CHECK: orr w1, wzr, #0x1
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; CHECK: bl variadic
ret void
}
ARM64: mark x7 as used when an i128 gets shunted onto the stack. The second half of a split i128 was ending up in x7, which is not a good thing. This is another part of PR19432. llvm-svn: 206366
2014-04-16 17:03:25 +08:00
; We weren't marking x7 as used after deciding that the i128 didn't fit into
; registers and putting the first half on the stack, so the *second* half went
; into x7. Yuck!
define i128 @test_i128_shadow([7 x i64] %x0_x6, i128 %sp) {
; CHECK-LABEL: test_i128_shadow:
; CHECK: ldp x0, x1, [sp]
ret i128 %sp
}
[ARM64] Handle fp128 for parameter passing on stack llvm-svn: 207222
2014-04-25 20:07:03 +08:00
; This test is to check if fp128 can be correctly handled on stack.
define fp128 @test_fp128([8 x float] %arg0, fp128 %arg1) {
; CHECK-LABEL: test_fp128:
; CHECK: ldr {{q[0-9]+}}, [sp]
ret fp128 %arg1
}
[AArch64] Correctly deal with VPR stack parameter passing. llvm-svn: 210067
2014-06-03 11:25:09 +08:00
; Check if VPR can be correctly pass by stack.
define <2 x double> @test_vreg_stack([8 x <2 x double>], <2 x double> %varg_stack) {
entry:
; CHECK-LABEL: test_vreg_stack:
; CHECK: ldr {{q[0-9]+}}, [sp]
ret <2 x double> %varg_stack;
}
ARM: Allow __fp16 as a function arg or return type for AArch64 ACLE 2.0 allows __fp16 to be used as a function argument or return type. This enables this for AArch64. llvm-svn: 212812
2014-07-11 21:33:46 +08:00
; Check that f16 can be passed and returned (ACLE 2.0 extension)
define half @test_half(float, half %arg) {
; CHECK-LABEL: test_half:
Teach the AArch64 backend about v4f16 and v8f16 This teaches the AArch64 backend to deal with the operations required to deal with the operations on v4f16 and v8f16 which are exposed by NEON intrinsics, plus the add, sub, mul and div operations. llvm-svn: 216555
2014-08-28 00:16:04 +08:00
; CHECK: mov v0.16b, v1.16b
ARM: Allow __fp16 as a function arg or return type for AArch64 ACLE 2.0 allows __fp16 to be used as a function argument or return type. This enables this for AArch64. llvm-svn: 212812
2014-07-11 21:33:46 +08:00
ret half %arg;
}
; Check that f16 constants are materialized correctly
define half @test_half_const() {
; CHECK-LABEL: test_half_const:
; CHECK: ldr h0, [x{{[0-9]+}}, :lo12:{{.*}}]
ret half 0xH4248
}
Teach the AArch64 backend about v4f16 and v8f16 This teaches the AArch64 backend to deal with the operations required to deal with the operations on v4f16 and v8f16 which are exposed by NEON intrinsics, plus the add, sub, mul and div operations. llvm-svn: 216555
2014-08-28 00:16:04 +08:00
; Check that v4f16 can be passed and returned in registers
define <4 x half> @test_v4_half_register(float, <4 x half> %arg) {
; CHECK-LABEL: test_v4_half_register:
; CHECK: mov v0.16b, v1.16b
ret <4 x half> %arg;
}
; Check that v8f16 can be passed and returned in registers
define <8 x half> @test_v8_half_register(float, <8 x half> %arg) {
; CHECK-LABEL: test_v8_half_register:
; CHECK: mov v0.16b, v1.16b
ret <8 x half> %arg;
}
; Check that v4f16 can be passed and returned on the stack
define <4 x half> @test_v4_half_stack([8 x <2 x double>], <4 x half> %arg) {
; CHECK-LABEL: test_v4_half_stack:
; CHECK: ldr d0, [sp]
ret <4 x half> %arg;
}
; Check that v8f16 can be passed and returned on the stack
define <8 x half> @test_v8_half_stack([8 x <2 x double>], <8 x half> %arg) {
; CHECK-LABEL: test_v8_half_stack:
; CHECK: ldr q0, [sp]
ret <8 x half> %arg;
}