http://llvm.org/bugs/show_bug.cgi?id=22081
Bug ID: 22081
Summary: target-features function attribute does not apply in
32-bit x86 target
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
r225079.
Using target-features function attribute +sse2 does not cause 32-bit x86 code
generator to use SSE. Using command line flag -mattr=+sse2 does.
$ cat test.ll
define double @inv(double %x) #0 {
entry:
%div = fdiv double 1.0, %x
ret double %div
}
attributes #0 = { "target-features"="+sse2" }
$ llc test.ll -o -
inv:
fld1
fdivl 4(%esp)
retl
$ llc -mattr=+sse2 test.ll -o -
inv:
subl $12, %esp
movsd .LCPI0_0, %xmm0
divsd 16(%esp), %xmm0
movsd %xmm0, (%esp)
fldl (%esp)
addl $12, %esp
retl
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