[PATCH 3/3] Make the literal argument to pow a double, not an integer

["Christian Biesinger via gdb-patches" <gdb-patches@sourceware.org>]

Since pow takes doubles, pass 2.0 instead of 2 to pow ().

Conveniently, this fixes the ambiguous call to pow on Solaris 11
with gcc 5.5 (gcc211 on the compile farm), which has a "using std::pow"
directive in a system header, which brings in float/double/long double
overloads.  Fixes the build on Solaris with enable-targets=all.

gdb/ChangeLog:

2019-12-18  Christian Biesinger  <cbiesinger@google.com>

	* score-tdep.c (score7_analyze_prologue): Pass 2.0 instead of
	2 to pow ().

Change-Id: Ib18e7e4749ddcbff0727b72a31198f8cb84d1993
---
 gdb/score-tdep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/score-tdep.c b/gdb/score-tdep.c
index 5ca763c40f..691051729e 100644
--- a/gdb/score-tdep.c
+++ b/gdb/score-tdep.c
@@ -918,13 +918,13 @@ score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc,
                    && G_FLD (inst->v, 2, 0) == 0x0)
             {
               /* subei! r0, n */
-              sp_offset += (int) pow (2, G_FLD (inst->v, 6, 3));
+              sp_offset += (int) pow (2.0, G_FLD (inst->v, 6, 3));
             }
           else if (G_FLD (inst->v, 14, 7) == 0xc0
                    && G_FLD (inst->v, 2, 0) == 0x0)
             {
               /* addei! r0, n */
-              sp_offset -= (int) pow (2, G_FLD (inst->v, 6, 3));
+              sp_offset -= (int) pow (2.0, G_FLD (inst->v, 6, 3));
             }
         }
       else
-- 
2.24.1.735.g03f4e72817-goog