Hi,
This patch adds support for the Cortex-M33 processor launched by ARM [1]. The
patch adds support for the name and wires it up to the ARMv8-M Mainline with DSP
extensions architecture and arm_v7m_tune tuning parameters for the time being.
It also updates documentation to mention this new processor.
[1] http://www.arm.com/products/processors/cortex-m/cortex-m33-processor.php
ChangeLog entry is as follows:
*** gcc/Changelog ***
2016-10-26 Thomas Preud'homme <thomas.preudho...@arm.com>
* config/arm/arm-arches.def (armv8-m.main+dsp): Set Cortex-M33 as
representative core for this architecture.
* config/arm/arm-cores.def (cortex-m33): Define new processor.
* config/arm/arm-tables.opt: Regenerate.
* config/arm/arm-tune.md: Likewise.
* config/arm/bpabi.h (BE8_LINK_SPEC): Add Cortex-M33 to the list of
valid -mcpu options.
* doc/invoke.texi (ARM Options): Document new Cortex-M33 processor.
Tested by building libgcc and libstdc++ for Cortex-M33 and running a hello world
compiled for it.
Is this ok for master?
Best regards,
Thomas
diff --git a/gcc/config/arm/arm-arches.def b/gcc/config/arm/arm-arches.def
index 9293429b3f9a026bcdacc1651c534bdf14d4df1e..cd79bc505853d4dda6cf2e58bdc2d129032befef 100644
--- a/gcc/config/arm/arm-arches.def
+++ b/gcc/config/arm/arm-arches.def
@@ -73,7 +73,7 @@ ARM_ARCH("armv8-m.base", cortexm23, 8M_BASE,
ARM_FSET_MAKE_CPU1 ( FL_FOR_ARCH8M_BASE))
ARM_ARCH("armv8-m.main", cortexm7, 8M_MAIN,
ARM_FSET_MAKE_CPU1(FL_CO_PROC | FL_FOR_ARCH8M_MAIN))
-ARM_ARCH("armv8-m.main+dsp", cortexm7, 8M_MAIN,
+ARM_ARCH("armv8-m.main+dsp", cortexm33, 8M_MAIN,
ARM_FSET_MAKE_CPU1(FL_CO_PROC | FL_ARCH7EM | FL_FOR_ARCH8M_MAIN))
ARM_ARCH("iwmmxt", iwmmxt, 5TE, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT))
ARM_ARCH("iwmmxt2", iwmmxt2, 5TE, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT | FL_IWMMXT2))
diff --git a/gcc/config/arm/arm-cores.def b/gcc/config/arm/arm-cores.def
index 940b5de82f0340fc0c26be80d47729bc1f193db0..ec63ee4abe54af06cd5531486f294f9a8dae71a1 100644
--- a/gcc/config/arm/arm-cores.def
+++ b/gcc/config/arm/arm-cores.def
@@ -168,6 +168,7 @@ ARM_CORE("cortex-a17.cortex-a7", cortexa17cortexa7, cortexa7, 7A, ARM_FSET_MAKE_
/* V8 Architecture Processors */
ARM_CORE("cortex-m23", cortexm23, cortexm23, 8M_BASE, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH8M_BASE), v6m)
ARM_CORE("cortex-a32", cortexa32, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
+ARM_CORE("cortex-m33", cortexm33, cortexm33, 8M_MAIN, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_ARCH7EM | FL_FOR_ARCH8M_MAIN), v7m)
ARM_CORE("cortex-a35", cortexa35, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
ARM_CORE("cortex-a53", cortexa53, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a53)
ARM_CORE("cortex-a57", cortexa57, cortexa57, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a57)
diff --git a/gcc/config/arm/arm-tables.opt b/gcc/config/arm/arm-tables.opt
index de712924afd33ba1e6e65cb56a5b260858d0cc4f..f7886b94be779fcba91506e77574662fe7188876 100644
--- a/gcc/config/arm/arm-tables.opt
+++ b/gcc/config/arm/arm-tables.opt
@@ -313,6 +313,9 @@ EnumValue
Enum(processor_type) String(cortex-a32) Value(cortexa32)
EnumValue
+Enum(processor_type) String(cortex-m33) Value(cortexm33)
+
+EnumValue
Enum(processor_type) String(cortex-a35) Value(cortexa35)
EnumValue
diff --git a/gcc/config/arm/arm-tune.md b/gcc/config/arm/arm-tune.md
index 46c2c9258bcad43618a50f6201414fa084cb5b56..e782baccf424e51ac19ef5f02d25ed4f4eb0541d 100644
--- a/gcc/config/arm/arm-tune.md
+++ b/gcc/config/arm/arm-tune.md
@@ -33,8 +33,9 @@
cortexr8,cortexm7,cortexm4,
cortexm3,marvell_pj4,cortexa15cortexa7,
cortexa17cortexa7,cortexm23,cortexa32,
- cortexa35,cortexa53,cortexa57,
- cortexa72,cortexa73,exynosm1,
- qdf24xx,xgene1,cortexa57cortexa53,
- cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53"
+ cortexm33,cortexa35,cortexa53,
+ cortexa57,cortexa72,cortexa73,
+ exynosm1,qdf24xx,xgene1,
+ cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,
+ cortexa73cortexa53"
(const (symbol_ref "((enum attr_tune) arm_tune)")))
diff --git a/gcc/config/arm/bpabi.h b/gcc/config/arm/bpabi.h
index 302302f0d2d522fe282bb1d12687b53de72cae25..d45a1ca421901da25e16d965a9474438ea10f349 100644
--- a/gcc/config/arm/bpabi.h
+++ b/gcc/config/arm/bpabi.h
@@ -97,7 +97,7 @@
|march=armv8.2-a+fp16 \
|march=armv8-m.base|mcpu=cortex-m23 \
|march=armv8-m.main \
- |march=armv8-m.main+dsp \
+ |march=armv8-m.main+dsp|mcpu=cortex-m33 \
:%{!r:--be8}}}"
#else
#define BE8_LINK_SPEC \
@@ -136,7 +136,7 @@
|march=armv8.2-a+fp16 \
|march=armv8-m.base|mcpu=cortex-m23 \
|march=armv8-m.main \
- |march=armv8-m.main+dsp \
+ |march=armv8-m.main+dsp|mcpu=cortex-m33 \
:%{!r:--be8}}}"
#endif
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 42f0307b36e4fe75c946a64bf6258a1ba1bd7b3d..de328dd6c475b498c64113398e49e319fd5a982e 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14853,6 +14853,7 @@ Permissible names are: @samp{arm2}, @samp{arm250},
@samp{cortex-a32}, @samp{cortex-a35}, @samp{cortex-a53}, @samp{cortex-a57},
@samp{cortex-a72}, @samp{cortex-a73}, @samp{cortex-r4},
@samp{cortex-r4f}, @samp{cortex-r5}, @samp{cortex-r7}, @samp{cortex-r8},
+@samp{cortex-m33},
@samp{cortex-m23},
@samp{cortex-m7},
@samp{cortex-m4},
