[llvm] r279078 - [ARM] Correct ARMv8*-A optional extension definitions in TargetParser

[Richard Barton via llvm-commits]

Author: rbarton
Date: Thu Aug 18 10:50:11 2016
New Revision: 279078

URL: http://llvm.org/viewvc/llvm-project?rev=279078&view=rev
Log:
[ARM] Correct ARMv8*-A optional extension definitions in TargetParser

The ARMv8*-A descriptions in the ARM and AArch64 TargetParsers are incorrect
architecturally and mismatched to the backend descriptions.

RAS is an optional extension to ARMv8-A and ARMv8.1-A and mandatory in
ARMv8.2-A. Correct the ARMTargetParser descriptions which had this as enabled
by default in the earlier versions.

The FP16 and SPE extensions are optional in ARMv8.2-A and the backend defaults
them as off. They are not available as extensions to earlier ARMv8-A versions.
Correct the AArch64TargetParser which had these as enabled by default in all
ARMv8-A definitions.

These macros are only used to define preprocessor macros. There are no macros
yet as ACLE has not caught up with ARMv8.2-A so not possible to add a test.

Differential Revision: https://reviews.llvm.org/D23500

Modified:
    llvm/trunk/include/llvm/Support/AArch64TargetParser.def
    llvm/trunk/include/llvm/Support/ARMTargetParser.def

Modified: llvm/trunk/include/llvm/Support/AArch64TargetParser.def
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/AArch64TargetParser.def?rev=279078&r1=279077&r2=279078&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/AArch64TargetParser.def (original)
+++ llvm/trunk/include/llvm/Support/AArch64TargetParser.def Thu Aug 18 10:50:11 2016
@@ -21,16 +21,15 @@ AARCH64_ARCH("invalid", AK_INVALID, null
 AARCH64_ARCH("armv8-a", AK_ARMV8A, "8-A", "v8", ARMBuildAttrs::CPUArch::v8_A,
              FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-              AArch64::AEK_SIMD | AArch64::AEK_FP16 | AArch64::AEK_PROFILE))
+              AArch64::AEK_SIMD))
 AARCH64_ARCH("armv8.1-a", AK_ARMV8_1A, "8.1-A", "v8.1a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-              AArch64::AEK_SIMD | AArch64::AEK_FP16 | AArch64::AEK_PROFILE))
+              AArch64::AEK_SIMD))
 AARCH64_ARCH("armv8.2-a", AK_ARMV8_2A, "8.2-A", "v8.2a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-              AArch64::AEK_SIMD | AArch64::AEK_FP16 | AArch64::AEK_PROFILE |
-              AArch64::AEK_RAS))
+              AArch64::AEK_SIMD | AArch64::AEK_RAS))
 #undef AARCH64_ARCH
 
 #ifndef AARCH64_ARCH_EXT_NAME

Modified: llvm/trunk/include/llvm/Support/ARMTargetParser.def
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/ARMTargetParser.def?rev=279078&r1=279077&r2=279078&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/ARMTargetParser.def (original)
+++ llvm/trunk/include/llvm/Support/ARMTargetParser.def Thu Aug 18 10:50:11 2016
@@ -89,11 +89,11 @@ ARM_ARCH("armv8-a", AK_ARMV8A, "8-A", "v
 ARM_ARCH("armv8.1-a", AK_ARMV8_1A, "8.1-A", "v8.1a",
          ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
          (ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
-          ARM::AEK_HWDIV | ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS))
+          ARM::AEK_HWDIV | ARM::AEK_DSP | ARM::AEK_CRC))
 ARM_ARCH("armv8.2-a", AK_ARMV8_2A, "8.2-A", "v8.2a",
          ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
          (ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
-          ARM::AEK_HWDIV | ARM::AEK_DSP | ARM::AEK_CRC))
+          ARM::AEK_HWDIV | ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS))
 ARM_ARCH("armv8-m.base", AK_ARMV8MBaseline, "8-M.Baseline", "v8m.base",
           ARMBuildAttrs::CPUArch::v8_M_Base, FK_NONE, ARM::AEK_HWDIV)
 ARM_ARCH("armv8-m.main", AK_ARMV8MMainline, "8-M.Mainline", "v8m.main",