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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-11-24 06:13:33 +00:00
parent 9a5bdad0cc
commit 94613166b7
1 changed files with 21 additions and 0 deletions
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21
lib/Target/X86/README.txt
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@ -1511,3 +1511,24 @@ LBB1_4: # cond_true
cmpl $262144, %eax
//===---------------------------------------------------------------------===//
define i64 @test(double %X) {
%Y = fptosi double %X to i64
ret i64 %Y
}
compiles to:
_test:
subl $20, %esp
movsd 24(%esp), %xmm0
movsd %xmm0, 8(%esp)
fldl 8(%esp)
fisttpll (%esp)
movl 4(%esp), %edx
movl (%esp), %eax
addl $20, %esp
#FP_REG_KILL
ret
This should just fldl directly from the input stack slot.