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Diffstat (limited to 'contrib/compiler-rt/lib/i386/floatdixf.S')
| -rw-r--r-- | contrib/compiler-rt/lib/i386/floatdixf.S | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/contrib/compiler-rt/lib/i386/floatdixf.S b/contrib/compiler-rt/lib/i386/floatdixf.S deleted file mode 100644 index 412976fb41b1..000000000000 --- a/contrib/compiler-rt/lib/i386/floatdixf.S +++ /dev/null @@ -1,29 +0,0 @@ -// This file is dual licensed under the MIT and the University of Illinois Open -// Source Licenses. See LICENSE.TXT for details. - -#include "../assembly.h" - -// float __floatdixf(di_int a); - -#ifdef __i386__ - -// This routine has some extra memory traffic, loading the 64-bit input via two -// 32-bit loads, then immediately storing it back to the stack via a single 64-bit -// store. This is to avoid a write-small, read-large stall. -// However, if callers of this routine can be safely assumed to store the argument -// via a 64-bt store, this is unnecessary memory traffic, and should be avoided. -// It can be turned off by defining the TRUST_CALLERS_USE_64_BIT_STORES macro. - -.text -.align 4 -DEFINE_COMPILERRT_FUNCTION(__floatdixf) -#ifndef TRUST_CALLERS_USE_64_BIT_STORES - movd 4(%esp), %xmm0 - movd 8(%esp), %xmm1 - punpckldq %xmm1, %xmm0 - movq %xmm0, 4(%esp) -#endif - fildll 4(%esp) - ret - -#endif // __i386__ |