davemgreen wrote:
@john-brawn-arm any ideas? It looks OK to me. (It would need to handle all
instructions before HasStrictFP was added though).
https://github.com/llvm/llvm-project/pull/137101
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davemgreen wrote:
Hi - I went looking at out internal tracker for what happened the last time we
enabled strictfp for AArch64. This was the list of patches mentioned, there
might have been some more either before these or some minor fixups.
```
94843ea7d7e5 [AArch64] Make machine combiner patte
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https://github.com/llvm/llvm-project/pull/146323
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https://github.com/davemgreen approved this pull request.
LGTM
https://github.com/llvm/llvm-project/pull/146515
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Author: David Green
Date: 2025-07-04T15:27:33+01:00
New Revision: 9fcea2e4656acbf6025e73da641e619ff12ee3d0
URL:
https://github.com/llvm/llvm-project/commit/9fcea2e4656acbf6025e73da641e619ff12ee3d0
DIFF:
https://github.com/llvm/llvm-project/commit/9fcea2e4656acbf6025e73da641e619ff12ee3d0.diff
L
https://github.com/davemgreen approved this pull request.
Thanks for doing this. LGTM.
https://github.com/llvm/llvm-project/pull/146896
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Author: David Green
Date: 2025-07-03T21:27:48+01:00
New Revision: ec350657893db46c8a1fb20972df653ce56355e0
URL:
https://github.com/llvm/llvm-project/commit/ec350657893db46c8a1fb20972df653ce56355e0
DIFF:
https://github.com/llvm/llvm-project/commit/ec350657893db46c8a1fb20972df653ce56355e0.diff
L
@@ -176,25 +176,43 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef
ProcCpuinfoContent) {
SmallVector Lines;
ProcCpuinfoContent.split(Lines, '\n');
- // Look for the CPU implementer line.
+ // Look for the CPU implementer and hardware lines, and store the CPU pa
@@ -176,25 +176,43 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef
ProcCpuinfoContent) {
SmallVector Lines;
ProcCpuinfoContent.split(Lines, '\n');
- // Look for the CPU implementer line.
+ // Look for the CPU implementer and hardware lines, and store the CPU pa
https://github.com/davemgreen edited
https://github.com/llvm/llvm-project/pull/146515
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Author: David Green
Date: 2025-07-03T07:41:13+01:00
New Revision: 1f8f477bd03869a9b5b2e7ff0c24c74397aba486
URL:
https://github.com/llvm/llvm-project/commit/1f8f477bd03869a9b5b2e7ff0c24c74397aba486
DIFF:
https://github.com/llvm/llvm-project/commit/1f8f477bd03869a9b5b2e7ff0c24c74397aba486.diff
L
@@ -176,25 +176,43 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef
ProcCpuinfoContent) {
SmallVector Lines;
ProcCpuinfoContent.split(Lines, '\n');
- // Look for the CPU implementer line.
+ // Look for the CPU implementer and hardware lines, and store the CPU pa
Author: David Green
Date: 2025-06-30T17:15:26+01:00
New Revision: 6bd9ff04afdfbef1cf753f2cdd8a4e85ef6685eb
URL:
https://github.com/llvm/llvm-project/commit/6bd9ff04afdfbef1cf753f2cdd8a4e85ef6685eb
DIFF:
https://github.com/llvm/llvm-project/commit/6bd9ff04afdfbef1cf753f2cdd8a4e85ef6685eb.diff
L
https://github.com/davemgreen commented:
Thanks
https://github.com/llvm/llvm-project/pull/146107
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davemgreen wrote:
The best kind of patch.
> When compiling with -march=armv9-a+nosve we found that Clang still defines
> the __ARM_FEATURE_SVE2 macro
Could we add a test for this, in case it comes up again in the future? Negative
features have not worked super well in the past and could do wi
https://github.com/davemgreen closed
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OK. LGTM then. Thanks for the quick fix.
https://github.com/llvm/llvm-project/pull/146260
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https://github.com/davemgreen commented:
The llvm test look OK if you wanted to push those separately.
https://github.com/llvm/llvm-project/pull/146260
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@@ -170,7 +170,7 @@ getAArch64MicroArchFeaturesFromMtune(const Driver &D,
StringRef Mtune,
// 'cyclone' and later have zero-cycle register moves and zeroing.
if (MtuneLowerCase == "cyclone" ||
StringRef(MtuneLowerCase).starts_with("apple")) {
-Features.push_back(
davemgreen wrote:
I haven't seen anything else like that I don't believe, and my understanding is
the new IR should be simpler than before. Let me know if you have anything that
can show the issue you are running into. Thanks
https://github.com/llvm/llvm-project/pull/135064
___
davemgreen wrote:
> The issue seems to be with pointers to functions, adding
>
> ```
>FDTy = getContext().getBaseElementType(FDTy);
> return (FDTy->isPointerOrReferenceType() &&
> getContext().getTypeSize(FDTy) == 64 &&
> -!FDTy->getPointeeTy
@@ -0,0 +1,723 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
UTC_ARGS: --version 5
+; RUN: llc -mtriple=aarch64 -verify-machineinstrs --mattr=+cpa
-aarch64-use-featcpa-codegen=true -O0 -global-isel=1 -global-isel-abort=1 %s -o
- 2>&1 | FileCh
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https://github.com/llvm/llvm-project/pull/105669
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@@ -0,0 +1,723 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
UTC_ARGS: --version 5
+; RUN: llc -mtriple=aarch64 -verify-machineinstrs --mattr=+cpa
-aarch64-use-featcpa-codegen=true -O0 -global-isel=1 -global-isel-abort=1 %s -o
- 2>&1 | FileCh
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@@ -10716,6 +10716,21 @@ let Predicates = [HasCPA] in {
// Scalar multiply-add/subtract
def MADDPT : MulAccumCPA<0, "maddpt">;
def MSUBPT : MulAccumCPA<1, "msubpt">;
+
+ def : Pat<(ptradd GPR64sp:$Rn, GPR64sp:$Rm),
+(ADDPT_shift GPR64sp:$Rn, GPR64sp:$Rm, (i32
https://github.com/davemgreen commented:
Thanks for the updates, this is quite a bit simpler now. As far as I can tell
this looks OK to me.
https://github.com/llvm/llvm-project/pull/105669
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davemgreen wrote:
> Personally I'd default to off, particularly after having clang default this
> to off for the last 10 years.
I didn't believe this changed the defaults (I may be mistaken, let me know if I
am!). It was already enabled on Android + Fuchsia, and I believe this patch
keeps tha
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https://github.com/llvm/llvm-project/pull/143915
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https://github.com/davemgreen approved this pull request.
I think this LGTM. I left a comment for maybe having a "IsPossiblyACortexA53"
check that would could reuse in a few places, but that is probably best
extended as a separate issue.
https://github.com/llvm/llvm-project/pull/143915
___
@@ -91,7 +91,9 @@ void fuchsia::Linker::ConstructJob(Compilation &C, const
JobAction &JA,
CmdArgs.push_back("--execute-only");
std::string CPU = getCPUName(D, Args, Triple);
-if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
+if (Args.hasFlag(options
Author: David Green
Date: 2025-06-12T20:51:58+01:00
New Revision: 030a471753421477c7ef345cc60091788252fabc
URL:
https://github.com/llvm/llvm-project/commit/030a471753421477c7ef345cc60091788252fabc
DIFF:
https://github.com/llvm/llvm-project/commit/030a471753421477c7ef345cc60091788252fabc.diff
L
davemgreen wrote:
Thanks for the report - I'll put together a fix to exclude address spaces for
the moment.
https://github.com/llvm/llvm-project/pull/135064
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davemgreen wrote:
Cheers
https://github.com/llvm/llvm-project/pull/142760
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davemgreen wrote:
Ping - thanks
https://github.com/llvm/llvm-project/pull/142760
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https://github.com/davemgreen approved this pull request.
https://github.com/llvm/llvm-project/pull/143570
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https://github.com/llvm/llvm-project/pull/142557
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davemgreen wrote:
Rebase and ping - it feels like this is a decent compromise for keeping the
code simple.
https://github.com/llvm/llvm-project/pull/135064
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https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 6667abfc2191ffca673767c92713f346599f2a35 Mon Sep 17 00:00:00 2001
From: David Green
Date: Thu, 5 Jun 2025 12:01:08 +0100
Subject: [PATCH] [AArch64] Change the coercion type of structs with pointer
memb
@@ -424,21 +424,74 @@ entry:
ret <2 x double> %0
}
-declare <4 x float> @llvm.ceil.v4f32(<4 x float>)
davemgreen wrote:
Yep - they are not necessary any more for intrinsics, since
https://discourse.llvm.org/t/recent-improvements-to-the-ir-parser/77366.
It
https://github.com/davemgreen created
https://github.com/llvm/llvm-project/pull/142760
This updates the element types used in the new __Int8x8_t types added in
#126945, mostly to allow C++ name mangling in ItaniumMangling
mangleAArch64VectorBase to work correctly. Char is replaced by SignedCha
https://github.com/davemgreen created
https://github.com/llvm/llvm-project/pull/142559
This marks ffloor as legal providing that armv8 and neon is present (or
fullfp16 for the fp16 instructions). The existing arm_neon_vrintm intrinsics
are auto-upgraded to llvm.floor.
If this is OK I will upd
https://github.com/davemgreen created
https://github.com/llvm/llvm-project/pull/142557
Now that #141786 handles scalar and neon types, this adds MVE definitions and
legalization for llvm.roundeven intrinsics. The existing llvm.arm.mve.vrintn
are auto-upgraded to llvm.roundeven like other vrint
https://github.com/davemgreen closed
https://github.com/llvm/llvm-project/pull/126945
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Author: David Green
Date: 2025-06-02T19:30:02+01:00
New Revision: 9f7f4acbf0fc42357e7c804447cb7c2468ca4f4e
URL:
https://github.com/llvm/llvm-project/commit/9f7f4acbf0fc42357e7c804447cb7c2468ca4f4e
DIFF:
https://github.com/llvm/llvm-project/commit/9f7f4acbf0fc42357e7c804447cb7c2468ca4f4e.diff
L
Author: David Green
Date: 2025-06-02T17:29:46+01:00
New Revision: be6fc0092e44c7fa3981639cbfe692c78a5eb418
URL:
https://github.com/llvm/llvm-project/commit/be6fc0092e44c7fa3981639cbfe692c78a5eb418
DIFF:
https://github.com/llvm/llvm-project/commit/be6fc0092e44c7fa3981639cbfe692c78a5eb418.diff
L
https://github.com/davemgreen closed
https://github.com/llvm/llvm-project/pull/141841
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https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/141841
>From 2ed4ce494dbabd94f5b60ae13ee1631fe40a0a4e Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 28 May 2025 20:39:53 +0100
Subject: [PATCH 1/2] [ASTWriter] Do not write ObjCCategories if empty.
This is
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/141841
>From 161981f3aca4ec68f7036f50947281a0ebf9f3f8 Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 28 May 2025 20:39:53 +0100
Subject: [PATCH 1/2] [ASTWriter] Do not write ObjCCategories if empty.
This is
davemgreen wrote:
> This change makes sense to me. I have two questions:
>
> 1. Can we add a test that checks that the block is omitted? (maybe via
> `llvm-bcanalyzer -dump`)
> 2. Can we make the `explicit-build.cpp` test more robust? (possibly by
> writing out import signatures)
Thanks - For
davemgreen wrote:
Patch up in #141850
https://github.com/llvm/llvm-project/pull/126945
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https://github.com/davemgreen created
https://github.com/llvm/llvm-project/pull/141841
This is a fix for a completely unrelated patch, that started to cause failures
in the explicit-build.cpp test because the size of the b.pcm and b-not-a.pcm
files became the same. The alignment added by empty
davemgreen wrote:
> LGTM with one nitpick. I've run this through a fuzzer which tests ABI
> compatibility with GCC and didn't find any problems.
Thanks for the review and the extra testing!
https://github.com/llvm/llvm-project/pull/126945
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https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/126945
>From 5a17166859760dcbc258892be46f7f909c2b00a9 Mon Sep 17 00:00:00 2001
From: Tomas Matheson
Date: Wed, 12 Feb 2025 14:31:47 +
Subject: [PATCH 1/3] Add missing Neon Types
The AAPCS64 adds a number of vec
Author: David Green
Date: 2025-05-28T12:26:54+01:00
New Revision: 3a42cbd47d3e92b8794378d2a0e8ec7ae81950d7
URL:
https://github.com/llvm/llvm-project/commit/3a42cbd47d3e92b8794378d2a0e8ec7ae81950d7
DIFF:
https://github.com/llvm/llvm-project/commit/3a42cbd47d3e92b8794378d2a0e8ec7ae81950d7.diff
L
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/126945
>From 410d78202cac8221048a83ea466b59cb6e78ea87 Mon Sep 17 00:00:00 2001
From: Tomas Matheson
Date: Wed, 12 Feb 2025 14:31:47 +
Subject: [PATCH 1/2] Add missing Neon Types
The AAPCS64 adds a number of vec
https://github.com/davemgreen edited
https://github.com/llvm/llvm-project/pull/126945
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davemgreen wrote:
I was discussing with @tmatheson-arm and he said I could take this over. I've
updated this branch (apparently that does work), trying to address the issues
and clean things up a bit. The new types are not longer a keyword, but that
seems to be OK providing we mark them as imp
davemgreen wrote:
These two are failing:
Clang.CodeGen/paren-list-agg-init.cpp
Clang.CodeGenCXX/microsoft-abi-throw.cpp
Can you try and fix them? (or remove them from this review and handle them
separately). The others look OK.
https://github.com/llvm/llvm-project/pull/140373
__
@@ -22,7 +22,7 @@ define signext i8 @test1(i32 %A) {
; CHECK-V7: @ %bb.0:
; CHECK-V7-NEXT:sbfx r0, r0, #8, #8
; CHECK-V7-NEXT:bx lr
-; CHECk-V7: sbfx r0, r0, #8, #8
+; CHECK-V7: sbfx r0, r0, #8, #8
davemgreen wrote:
Same here.
https://github.com
@@ -121,7 +121,7 @@ define i32 @test_orr_extract_from_mul_1(i32 %x, i32 %y) {
; CHECK-THUMB-NEXT:orrs r0, r1
; CHECK-THUMB-NEXT:bx lr
entry:
-; CHECk-THUMB: orrs r0, r1
+; CHECK-THUMB: orrs r0, r1
davemgreen wrote:
You can remove this line entirely, th
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 9a56ee32712c213b0fa06257bda9c2f31ec44416 Mon Sep 17 00:00:00 2001
From: David Green
Date: Thu, 15 May 2025 20:36:44 +0100
Subject: [PATCH] [AArch64] Change the coercion type of structs with pointer
mem
Author: David Green
Date: 2025-05-15T11:51:58+01:00
New Revision: f8f11c541dec9bfc19f80918cf12da71d6ae7b99
URL:
https://github.com/llvm/llvm-project/commit/f8f11c541dec9bfc19f80918cf12da71d6ae7b99
DIFF:
https://github.com/llvm/llvm-project/commit/f8f11c541dec9bfc19f80918cf12da71d6ae7b99.diff
L
https://github.com/davemgreen edited
https://github.com/llvm/llvm-project/pull/135064
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davemgreen wrote:
It looks like this came from #122280 / #122716. Sorry about the break, it
should have updated the CPU dependencies correctly too.
LGTM
https://github.com/llvm/llvm-project/pull/139212
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https://github.com/llvm/llvm-project/pull/139055
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@@ -1262,7 +1262,7 @@ INSTANTIATE_TEST_SUITE_P(
AArch64CPUAliasTestParams::PrintToStringParamName);
// Note: number of CPUs includes aliases.
-static constexpr unsigned NumAArch64CPUArchs = 89;
+static constexpr unsigned NumAArch64CPUArchs = 90;
davemgreen
https://github.com/davemgreen commented:
Can you add a release-note that this new CPU has been added?
https://github.com/llvm/llvm-project/pull/139055
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https://github.com/llvm/llvm-project/pull/135064
Rate limit ยท GitHub
body {
background-color: #f6f8fa;
color: #24292e;
font-family: -apple-system,BlinkMacSystemFont,Segoe
UI,Helvetica,Arial,san
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From d9e27ec881ec493174f3aee7a4faec567640e5e8 Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 9 Apr 2025 11:18:25 +0100
Subject: [PATCH 1/3] [AArch64] Add a test case for the coerced arguments. NFC
--
davemgreen wrote:
Rebase and ping - thanks.
https://github.com/llvm/llvm-project/pull/135064
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https://github.com/davemgreen closed
https://github.com/llvm/llvm-project/pull/137330
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https://github.com/davemgreen approved this pull request.
Thanks. LGTM
https://github.com/llvm/llvm-project/pull/137330
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@@ -862,7 +862,7 @@ def ProcessorFeatures {
FeatureSB, FeatureSSBS, FeaturePAuth,
FeatureFlagM, FeaturePredRes,
FeatureSVE, FeatureSVE2, FeatureComplxNum,
FeatureCRC, FeatureDotProd,
https://github.com/davemgreen commented:
Hi - I tried this with the latest
https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/config/cpu/aarch64/opt/ext/opt_random.h
and it seemed to need some fixes and then it might have failed to mangle the
types if they were used? I can provide
@@ -201,6 +201,42 @@ SVE_OPAQUE_TYPE(__SVCount_t, __SVCount_t, SveCount,
SveCountTy)
SVE_SCALAR_TYPE(__mfp8, __mfp8, MFloat8, MFloat8Ty, 8)
+// Unlike the SVE types above, the Neon vector types are parsed as keywords and
+// mapped to the equivalent __attribute__(neon_vector
@@ -201,6 +201,42 @@ SVE_OPAQUE_TYPE(__SVCount_t, __SVCount_t, SveCount,
SveCountTy)
SVE_SCALAR_TYPE(__mfp8, __mfp8, MFloat8, MFloat8Ty, 8)
+// Unlike the SVE types above, the Neon vector types are parsed as keywords and
+// mapped to the equivalent __attribute__(neon_vector
@@ -201,6 +201,42 @@ SVE_OPAQUE_TYPE(__SVCount_t, __SVCount_t, SveCount,
SveCountTy)
SVE_SCALAR_TYPE(__mfp8, __mfp8, MFloat8, MFloat8Ty, 8)
+// Unlike the SVE types above, the Neon vector types are parsed as keywords and
+// mapped to the equivalent __attribute__(neon_vector
@@ -1366,6 +1366,13 @@ static QualType
ConvertDeclSpecToType(TypeProcessingState &state) {
break;
#include "clang/Basic/OpenCLImageTypes.def"
+#define NEON_VECTOR_TYPE(Name, BaseType, ElBits, NumEls, VectorKind)
\
+ case DeclSpec::TST_##Name:
https://github.com/davemgreen edited
https://github.com/llvm/llvm-project/pull/126945
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davemgreen wrote:
@john-brawn-arm did the work for AArch64, I'm not sure if he would have an idea
how much work it would involve for the Arm backend.
https://github.com/llvm/llvm-project/pull/137101
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davemgreen wrote:
I believe the backend would still need work to make sure this is supported,
which has not been done yet. I was expecting it to fail more noisily, but it
appears the strict nodes are lowered to generic nodes. That doesn't mean that
strict-fp is supported by the Arm backend, as
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 8655b5aff2162bfc13d3f263d6b7830e0186c097 Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 9 Apr 2025 11:18:25 +0100
Subject: [PATCH 1/2] [AArch64] Add a test case for the coerced arguments. NFC
--
@@ -485,6 +485,39 @@ ABIArgInfo AArch64ABIInfo::classifyArgumentType(QualType
Ty, bool IsVariadicFn,
}
Size = llvm::alignTo(Size, Alignment);
+// If the Aggregate is made up of pointers, use an array of pointers for
the
+// coerced type. This prevents having
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 8655b5aff2162bfc13d3f263d6b7830e0186c097 Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 9 Apr 2025 11:18:25 +0100
Subject: [PATCH 1/2] [AArch64] Add a test case for the coerced arguments. NFC
--
https://github.com/davemgreen approved this pull request.
Thanks. LGTM
https://github.com/llvm/llvm-project/pull/130623
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@@ -419,6 +419,9 @@ Bug Fixes to Attribute Support
- No longer crashing on ``__attribute__((align_value(N)))`` during template
instantiation when the function parameter type is not a pointer or reference.
(#GH26612)
+- The ``+nosimd`` attribute is now fully supported for AA
https://github.com/davemgreen edited
https://github.com/llvm/llvm-project/pull/130623
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https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 33a204bcc884178971c4327528b1e3b75336914e Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 9 Apr 2025 11:18:25 +0100
Subject: [PATCH 1/6] [AArch64] Add a test case for the coerced arguments. NFC
--
@@ -679,21 +679,17 @@ llvm::ARM::FPUKind arm::getARMTargetFeatures(const Driver
&D,
CPUArgFPUKind != llvm::ARM::FK_INVALID ? CPUArgFPUKind :
ArchArgFPUKind;
(void)llvm::ARM::getFPUFeatures(FPUKind, Features);
} else {
-bool Generic = true;
-if (!ForAS) {
https://github.com/davemgreen updated
https://github.com/llvm/llvm-project/pull/135064
>From 33a204bcc884178971c4327528b1e3b75336914e Mon Sep 17 00:00:00 2001
From: David Green
Date: Wed, 9 Apr 2025 11:18:25 +0100
Subject: [PATCH 1/5] [AArch64] Add a test case for the coerced arguments. NFC
--
@@ -38,6 +38,9 @@ Potentially Breaking Changes
- Fix missing diagnostics for uses of declarations when performing typename
access,
such as when performing member access on a '[[deprecated]]' type alias.
(#GH58547)
+- For ARM targets, when using cc1as, the features included
https://github.com/davemgreen approved this pull request.
The other thing this patch does is bring the preprocessor features for
-march=armv8.1-m in line with the assembly features. It was previously enabling
__ARM_VFPV2__ but not allowing vfpv2 instructions.
I'm still not sure about the Win/D
@@ -679,21 +679,17 @@ llvm::ARM::FPUKind arm::getARMTargetFeatures(const Driver
&D,
CPUArgFPUKind != llvm::ARM::FK_INVALID ? CPUArgFPUKind :
ArchArgFPUKind;
(void)llvm::ARM::getFPUFeatures(FPUKind, Features);
} else {
-bool Generic = true;
-if (!ForAS) {
@@ -485,6 +485,24 @@ ABIArgInfo AArch64ABIInfo::classifyArgumentType(QualType
Ty, bool IsVariadicFn,
}
Size = llvm::alignTo(Size, Alignment);
+// If the Aggregate is made up of pointers, use an array of pointers for
the
+// coerced type. This prevents having
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