mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-03 14:21:30 +00:00
36a0947820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
61 lines
1.5 KiB
LLVM
61 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=x86 | grep fldz
|
|
; RUN: llc < %s -march=x86-64 | grep fld1
|
|
|
|
; This is basically this code on x86-64:
|
|
; _Complex long double test() { return 1.0; }
|
|
define {x86_fp80, x86_fp80} @test() {
|
|
%A = fpext double 1.0 to x86_fp80
|
|
%B = fpext double 0.0 to x86_fp80
|
|
ret x86_fp80 %A, x86_fp80 %B
|
|
}
|
|
|
|
|
|
;_test2:
|
|
; fld1
|
|
; fld %st(0)
|
|
; ret
|
|
define {x86_fp80, x86_fp80} @test2() {
|
|
%A = fpext double 1.0 to x86_fp80
|
|
ret x86_fp80 %A, x86_fp80 %A
|
|
}
|
|
|
|
; Uses both values.
|
|
define void @call1(x86_fp80 *%P1, x86_fp80 *%P2) {
|
|
%a = call {x86_fp80,x86_fp80} @test()
|
|
%b = getresult {x86_fp80,x86_fp80} %a, 0
|
|
store x86_fp80 %b, x86_fp80* %P1
|
|
|
|
%c = getresult {x86_fp80,x86_fp80} %a, 1
|
|
store x86_fp80 %c, x86_fp80* %P2
|
|
ret void
|
|
}
|
|
|
|
; Uses both values, requires fxch
|
|
define void @call2(x86_fp80 *%P1, x86_fp80 *%P2) {
|
|
%a = call {x86_fp80,x86_fp80} @test()
|
|
%b = getresult {x86_fp80,x86_fp80} %a, 1
|
|
store x86_fp80 %b, x86_fp80* %P1
|
|
|
|
%c = getresult {x86_fp80,x86_fp80} %a, 0
|
|
store x86_fp80 %c, x86_fp80* %P2
|
|
ret void
|
|
}
|
|
|
|
; Uses ST(0), ST(1) is dead but must be popped.
|
|
define void @call3(x86_fp80 *%P1, x86_fp80 *%P2) {
|
|
%a = call {x86_fp80,x86_fp80} @test()
|
|
%b = getresult {x86_fp80,x86_fp80} %a, 0
|
|
store x86_fp80 %b, x86_fp80* %P1
|
|
ret void
|
|
}
|
|
|
|
; Uses ST(1), ST(0) is dead and must be popped.
|
|
define void @call4(x86_fp80 *%P1, x86_fp80 *%P2) {
|
|
%a = call {x86_fp80,x86_fp80} @test()
|
|
|
|
%c = getresult {x86_fp80,x86_fp80} %a, 1
|
|
store x86_fp80 %c, x86_fp80* %P2
|
|
ret void
|
|
}
|
|
|