aaron/ispc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add support for atomic swap/cmpexchg with float and double types.

Browse Source 
Addresses issue #60.
This commit is contained in:
Matt Pharr
2011-07-07 14:07:52 +01:00
parent 729f522a01
commit aef8c09019
3 changed files with 49 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
stdlib.m4
View File

@@ -800,9 +800,48 @@ global_atomic($1, umax, i64, uint64)
global_swap($1, i32, int32)
global_swap($1, i64, int64)
define internal <$1 x float> @__atomic_swap_float_global(float * %ptr, <$1 x float> %val,
<$1 x i32> %mask) nounwind alwaysinline {
%iptr = bitcast float * %ptr to i32 *
%ival = bitcast <$1 x float> %val to <$1 x i32>
%iret = call <$1 x i32> @__atomic_swap_int32_global(i32 * %iptr, <$1 x i32> %ival, <$1 x i32> %mask)
%ret = bitcast <$1 x i32> %iret to <$1 x float>
ret <$1 x float> %ret
}
define internal <$1 x double> @__atomic_swap_double_global(double * %ptr, <$1 x double> %val,
<$1 x i32> %mask) nounwind alwaysinline {
%iptr = bitcast double * %ptr to i64 *
%ival = bitcast <$1 x double> %val to <$1 x i64>
%iret = call <$1 x i64> @__atomic_swap_int64_global(i64 * %iptr, <$1 x i64> %ival, <$1 x i32> %mask)
%ret = bitcast <$1 x i64> %iret to <$1 x double>
ret <$1 x double> %ret
}
global_atomic_exchange($1, i32, int32)
global_atomic_exchange($1, i64, int64)
define internal <$1 x float> @__atomic_compare_exchange_float_global(float * %ptr,
<$1 x float> %cmp, <$1 x float> %val, <$1 x i32> %mask) nounwind alwaysinline {
%iptr = bitcast float * %ptr to i32 *
%icmp = bitcast <$1 x float> %cmp to <$1 x i32>
%ival = bitcast <$1 x float> %val to <$1 x i32>
%iret = call <$1 x i32> @__atomic_compare_exchange_int32_global(i32 * %iptr, <$1 x i32> %icmp,
<$1 x i32> %ival, <$1 x i32> %mask)
%ret = bitcast <$1 x i32> %iret to <$1 x float>
ret <$1 x float> %ret
}
define internal <$1 x double> @__atomic_compare_exchange_double_global(double * %ptr,
<$1 x double> %cmp, <$1 x double> %val, <$1 x i32> %mask) nounwind alwaysinline {
%iptr = bitcast double * %ptr to i64 *
%icmp = bitcast <$1 x double> %cmp to <$1 x i64>
%ival = bitcast <$1 x double> %val to <$1 x i64>
%iret = call <$1 x i64> @__atomic_compare_exchange_int64_global(i64 * %iptr, <$1 x i64> %icmp,
<$1 x i64> %ival, <$1 x i32> %mask)
%ret = bitcast <$1 x i64> %iret to <$1 x double>
ret <$1 x double> %ret
}
')