mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-28 04:29:44 +00:00
57760d96e2
ppcf128 to i32 conversion and expand it into a code sequence like in LegalizeDAG. This needs custom ppc lowering of FP_ROUND_INREG, so turn that on and make it work with LegalizeTypes. Probably PPC should simply custom lower the original conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58329 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.2 KiB
LLVM
34 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | llc -march=ppc32 -o - | not grep fixunstfsi
|
|
|
|
define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone {
|
|
entry:
|
|
%0 = fcmp olt ppc_fp128 %a, 0xM00000000000000000000000000000000 ; <i1> [#uses=1]
|
|
br i1 %0, label %bb5, label %bb1
|
|
|
|
bb1: ; preds = %entry
|
|
%1 = mul ppc_fp128 %a, 0xM3DF00000000000000000000000000000 ; <ppc_fp128> [#uses=1]
|
|
%2 = fptoui ppc_fp128 %1 to i32 ; <i32> [#uses=1]
|
|
%3 = zext i32 %2 to i64 ; <i64> [#uses=1]
|
|
%4 = shl i64 %3, 32 ; <i64> [#uses=3]
|
|
%5 = uitofp i64 %4 to ppc_fp128 ; <ppc_fp128> [#uses=1]
|
|
%6 = sub ppc_fp128 %a, %5 ; <ppc_fp128> [#uses=3]
|
|
%7 = fcmp olt ppc_fp128 %6, 0xM00000000000000000000000000000000 ; <i1> [#uses=1]
|
|
br i1 %7, label %bb2, label %bb3
|
|
|
|
bb2: ; preds = %bb1
|
|
%8 = sub ppc_fp128 0xM80000000000000000000000000000000, %6 ; <ppc_fp128> [#uses=1]
|
|
%9 = fptoui ppc_fp128 %8 to i32 ; <i32> [#uses=1]
|
|
%10 = zext i32 %9 to i64 ; <i64> [#uses=1]
|
|
%11 = sub i64 %4, %10 ; <i64> [#uses=1]
|
|
ret i64 %11
|
|
|
|
bb3: ; preds = %bb1
|
|
%12 = fptoui ppc_fp128 %6 to i32 ; <i32> [#uses=1]
|
|
%13 = zext i32 %12 to i64 ; <i64> [#uses=1]
|
|
%14 = or i64 %13, %4 ; <i64> [#uses=1]
|
|
ret i64 %14
|
|
|
|
bb5: ; preds = %entry
|
|
ret i64 0
|
|
}
|