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* [binutils-gdb] sim: riscv: fix building on 32-bit hosts w/out int128
@ 2021-05-01 20:27 Michael Frysinger
0 siblings, 0 replies; only message in thread
From: Michael Frysinger @ 2021-05-01 20:27 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=bd12755bf409cb931682a13f08e41d87fac84ab5
commit bd12755bf409cb931682a13f08e41d87fac84ab5
Author: Mike Frysinger <vapier@gentoo.org>
Date: Sat May 1 15:58:09 2021 -0400
sim: riscv: fix building on 32-bit hosts w/out int128
Check for __SIZEOF_INT128__ before trying to use the builtin type.
This fixes building on some 32-bit systems like x86.
Diff:
---
sim/riscv/ChangeLog | 4 ++++
sim/riscv/sim-main.c | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/sim/riscv/ChangeLog b/sim/riscv/ChangeLog
index 37284a982a9..367faac9d4e 100644
--- a/sim/riscv/ChangeLog
+++ b/sim/riscv/ChangeLog
@@ -1,3 +1,7 @@
+2021-05-01 Mike Frysinger <vapier@gentoo.org>
+
+ * sim-main.c (mulhu): Check if __SIZEOF_INT128__ is defined.
+
2021-04-26 Mike Frysinger <vapier@gentoo.org>
* sim-main.c (MAX, MIN): Delete.
diff --git a/sim/riscv/sim-main.c b/sim/riscv/sim-main.c
index a80dc683826..6a2904cced7 100644
--- a/sim/riscv/sim-main.c
+++ b/sim/riscv/sim-main.c
@@ -603,7 +603,7 @@ execute_i (SIM_CPU *cpu, unsigned_word iw, const struct riscv_opcode *op)
static unsigned64
mulhu (unsigned64 a, unsigned64 b)
{
-#ifdef __GNUC__
+#if defined(__GNUC__) && defined(__SIZEOF_INT128__)
return ((__int128)a * b) >> 64;
#else
uint64_t t;
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2021-05-01 20:27 [binutils-gdb] sim: riscv: fix building on 32-bit hosts w/out int128 Michael Frysinger
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