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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-01-05 11:59:32 -0500 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-01-05 11:59:32 -0500 |
| commit | 1dca195e1c50d69fa4f0d18e821ec68f5d286df4 (patch) | |
| tree | cccf48935689a483d2a815cd8d5d82f5718ce55c /sysdeps/x86_64/x32/sysdep.h | |
| parent | ab70da77ea8076b49ad81a8c06103c51d4e81dc4 (diff) | |
| download | glibc-1dca195e1c50d69fa4f0d18e821ec68f5d286df4.tar.gz glibc-1dca195e1c50d69fa4f0d18e821ec68f5d286df4.tar.xz glibc-1dca195e1c50d69fa4f0d18e821ec68f5d286df4.zip | |
lround: provide cast for wordsize-64 version if needed
Platforms with 64-bit registers where 32-bit values need to have the high 32 bits set in a particular way need to have an explicit cast when using the 64-bit sysdeps/ieee754/dbl-64/wordsize-64 version of llround() as lround(). This includes tilegx32, and likely MIPS. x32 does not need this, and AArch64 ILP32 will not either. Require it to be specified in sysdep.h to be explicit.
Diffstat (limited to 'sysdeps/x86_64/x32/sysdep.h')
| -rw-r--r-- | sysdeps/x86_64/x32/sysdep.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86_64/x32/sysdep.h b/sysdeps/x86_64/x32/sysdep.h index 9b8700522f..0cbc1a083f 100644 --- a/sysdeps/x86_64/x32/sysdep.h +++ b/sysdeps/x86_64/x32/sysdep.h @@ -90,3 +90,7 @@ # define R15_LP "r15d" #endif /* __ASSEMBLER__ */ + +/* On x32, it is not required to normalize a 64-bit value before using + it as a 32-bit value. */ +#define REGISTER_CAST_INT32_TO_INT64 0 |