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GNU C Library master sources branch master updated. glibc-2.18-449-g6f47686
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 26 Nov 2013 16:05:26 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.18-449-g6f47686
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=6f476861be660541eee229acfbc9ef4098af70ab
commit 6f476861be660541eee229acfbc9ef4098af70ab
Author: Uros Bizjak <ubizjak@gmail.com>
Date: Tue Nov 26 16:05:10 2013 +0000
Avoid "left shift count >= width of type" warnings in soft-fp code.
diff --git a/ChangeLog b/ChangeLog
index 585b09f..5927ebb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-11-26 Uros Bizjak <ubizjak@gmail.com>
+
+ * soft-fp/op-4.h (_FP_FRAC_ASSEMBLE_4): Check rsize against
+ _FP_W_TYPE_SIZE to avoid "left shift count >= width of type"
+ warning.
+
2013-11-26 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/fpu/feenablxcpt.c (feenableexcept): Use
diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h
index 3515bdc..6c6b461 100644
--- a/soft-fp/op-4.h
+++ b/soft-fp/op-4.h
@@ -709,7 +709,7 @@
else if (rsize <= 2*_FP_W_TYPE_SIZE) \
{ \
r = X##_f[1]; \
- r <<= _FP_W_TYPE_SIZE; \
+ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
r += X##_f[0]; \
} \
else \
@@ -717,11 +717,11 @@
/* I'm feeling lazy so we deal with int == 3words (implausible)*/ \
/* and int == 4words as a single case. */ \
r = X##_f[3]; \
- r <<= _FP_W_TYPE_SIZE; \
+ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
r += X##_f[2]; \
- r <<= _FP_W_TYPE_SIZE; \
+ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
r += X##_f[1]; \
- r <<= _FP_W_TYPE_SIZE; \
+ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \
r += X##_f[0]; \
} \
} \
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 6 ++++++
soft-fp/op-4.h | 8 ++++----
2 files changed, 10 insertions(+), 4 deletions(-)
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