From 50d38551eeee9c225bd1af2e2a403de9ea298a7e Mon Sep 17 00:00:00 2001
From: Ian Bolton <ian.bolton@arm.com>
Date: Fri, 24 May 2013 14:54:15 +0000
Subject: [PATCH] AArch64 - allow insv_imm to handle bigger immediates via
masking to 16 bits
From-SVN: r199293
---
gcc/ChangeLog | 7 +++++++
gcc/config/aarch64/aarch64.c | 4 ++--
gcc/config/aarch64/aarch64.md | 5 ++---
3 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd36f0b33df0..f607fdfb4f91 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2013-05-24 Ian Bolton <ian.bolton@arm.com>
+
+ * config/aarch64/aarch64.c (aarch64_print_operand): Change the
+ X format specifier to only display bottom 16 bits.
+ * config/aarch64/aarch64.md (insv_imm<mode>): Allow any size of
+ immediate to match for operand 2, since it will be masked.
+
2013-05-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/57287
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 12a705587824..e580a1bcafc1 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -3428,13 +3428,13 @@ aarch64_print_operand (FILE *f, rtx x, char code)
break;
case 'X':
- /* Print integer constant in hex. */
+ /* Print bottom 16 bits of integer constant in hex. */
if (GET_CODE (x) != CONST_INT)
{
output_operand_lossage ("invalid operand for '%%%c'", code);
return;
}
- asm_fprintf (f, "0x%wx", UINTVAL (x));
+ asm_fprintf (f, "0x%wx", UINTVAL (x) & 0xffff);
break;
case 'w':
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index e1ec48f55220..2bdbfa90bf7f 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -858,9 +858,8 @@
(const_int 16)
(match_operand:GPI 1 "const_int_operand" "n"))
(match_operand:GPI 2 "const_int_operand" "n"))]
- "INTVAL (operands[1]) < GET_MODE_BITSIZE (<MODE>mode)
- && INTVAL (operands[1]) % 16 == 0
- && UINTVAL (operands[2]) <= 0xffff"
+ "UINTVAL (operands[1]) < GET_MODE_BITSIZE (<MODE>mode)
+ && UINTVAL (operands[1]) % 16 == 0"
"movk\\t%<w>0, %X2, lsl %1"
[(set_attr "v8type" "movk")
(set_attr "mode" "<MODE>")]
--
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