Update copyright years.

[thirdparty/gcc.git] / gcc / config / arm / arm-modes.def

diff --git a/gcc/config/arm/arm-modes.def b/gcc/config/arm/arm-modes.def
index 24e3d90a5838925639694e63eca5f21b82c6ef4b..21a77031d155acf4988e07b8ec3e8f2ba4a00149 100644 (file)
--- a/gcc/config/arm/arm-modes.def
+++ b/gcc/config/arm/arm-modes.def
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler, for ARM.
-   Copyright (C) 2002, 2004, 2007, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2002-2020 Free Software Foundation, Inc.
    Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
    and Martin Simmons (@harleqn.co.uk).
    More major hacks by Richard Earnshaw (rearnsha@arm.com)
@@ -21,9 +21,6 @@
    along with GCC; see the file COPYING3.  If not see
    <http://www.gnu.org/licenses/>.  */
 
-/* Extended precision floating point.
-   FIXME What format is this?  */
-FLOAT_MODE (XF, 12, 0);
 
 /* Half-precision floating point */
 FLOAT_MODE (HF, 2, 0);
@@ -32,22 +29,29 @@ ADJUST_FLOAT_FORMAT (HF, ((arm_fp16_format == ARM_FP16_FORMAT_ALTERNATIVE)
 
 /* CCFPEmode should be used with floating inequalities,
    CCFPmode should be used with floating equalities.
-   CC_NOOVmode should be used with SImode integer equalities.
+   CC_NZmode should be used if only the N and Z bits are set correctly.
    CC_Zmode should be used if only the Z flag is set correctly
    CC_Cmode should be used if only the C flag is set correctly, after an
      addition.
    CC_Nmode should be used if only the N (sign) flag is set correctly
-   CC_CZmode should be used if only the C and Z flags are correct
-   (used for DImode unsigned comparisons).
-   CC_NCVmode should be used if only the N, C, and V flags are correct
+   CC_NVmode should be used if only the N and V bits are set correctly,
+     (used for signed comparisons when the carry is propagated in).
+   CC_RSBmode should be used where the comparison is set by an RSB immediate,
+     or NEG instruction.  The form of the comparison for (const - reg) will
+     be (COMPARE (not (reg)) (~const)).
+   CC_Bmode should be used if only the C flag is correct after a subtract
+     (eg after an unsigned borrow with carry-in propagation).
    (used for DImode signed comparisons).
+   CC_ADCmode is used when the carry is formed from the output of ADC for an
+     addtion.  In this case we cannot use the trick of comparing the sum
+     against one of the other operands.
    CCmode should be used otherwise.  */
 
-CC_MODE (CC_NOOV);
+CC_MODE (CC_NZ);
 CC_MODE (CC_Z);
-CC_MODE (CC_CZ);
-CC_MODE (CC_NCV);
+CC_MODE (CC_NV);
 CC_MODE (CC_SWP);
+CC_MODE (CC_RSB);
 CC_MODE (CCFP);
 CC_MODE (CCFPE);
 CC_MODE (CC_DNE);
@@ -61,7 +65,10 @@ CC_MODE (CC_DLTU);
 CC_MODE (CC_DGEU);
 CC_MODE (CC_DGTU);
 CC_MODE (CC_C);
+CC_MODE (CC_B);
 CC_MODE (CC_N);
+CC_MODE (CC_V);
+CC_MODE (CC_ADC);
 
 /* Vector modes.  */
 VECTOR_MODES (INT, 4);        /*            V4QI V2HI */
@@ -69,6 +76,13 @@ VECTOR_MODES (INT, 8);        /*       V8QI V4HI V2SI */
 VECTOR_MODES (INT, 16);       /* V16QI V8HI V4SI V2DI */
 VECTOR_MODES (FLOAT, 8);      /*            V4HF V2SF */
 VECTOR_MODES (FLOAT, 16);     /*       V8HF V4SF V2DF */
+VECTOR_MODE (FLOAT, HF, 2);   /*                 V2HF */
+
+/* Fraction and accumulator vector modes.  */
+VECTOR_MODES (FRACT, 4);      /* V4QQ  V2HQ */
+VECTOR_MODES (UFRACT, 4);     /* V4UQQ V2UHQ */
+VECTOR_MODES (ACCUM, 4);      /*       V2HA */
+VECTOR_MODES (UACCUM, 4);     /*       V2UHA */
 
 /* Opaque integer modes for 3, 4, 6 or 8 Neon double registers (2 is
    TImode).  */