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| -rw-r--r-- | lib/Target/X86/README.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt index 8f5e15aa57..c6b817b710 100644 --- a/lib/Target/X86/README.txt +++ b/lib/Target/X86/README.txt @@ -729,3 +729,8 @@ float uint32_2_float( unsigned u ) { 0000002a flds (%esp,1) 0000002d addl $0x04,%esp 00000030 ret + +//===---------------------------------------------------------------------===// + +When using fastcc abi, align stack slot of argument of type double on 8 byte +boundary to improve performance. |