llvm-6502/test/CodeGen/X86/2009-02-12-SpillerBug.ll
Dan Gohman ae3a0be92e Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00

30 lines
1.1 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-apple-darwin8
; PR3561
define hidden void @__mulxc3({ x86_fp80, x86_fp80 }* noalias nocapture sret %agg.result, x86_fp80 %a, x86_fp80 %b, x86_fp80 %c, x86_fp80 %d) nounwind {
entry:
%0 = fmul x86_fp80 %b, %d ; <x86_fp80> [#uses=1]
%1 = fsub x86_fp80 0xK00000000000000000000, %0 ; <x86_fp80> [#uses=1]
%2 = fadd x86_fp80 0xK00000000000000000000, 0xK00000000000000000000 ; <x86_fp80> [#uses=1]
%3 = fcmp uno x86_fp80 %1, 0xK00000000000000000000 ; <i1> [#uses=1]
%4 = fcmp uno x86_fp80 %2, 0xK00000000000000000000 ; <i1> [#uses=1]
%or.cond = and i1 %3, %4 ; <i1> [#uses=1]
br i1 %or.cond, label %bb47, label %bb71
bb47: ; preds = %entry
%5 = fcmp uno x86_fp80 %a, 0xK00000000000000000000 ; <i1> [#uses=1]
br i1 %5, label %bb60, label %bb62
bb60: ; preds = %bb47
%6 = tail call x86_fp80 @copysignl(x86_fp80 0xK00000000000000000000, x86_fp80 %a) nounwind readnone ; <x86_fp80> [#uses=0]
br label %bb62
bb62: ; preds = %bb60, %bb47
unreachable
bb71: ; preds = %entry
ret void
}
declare x86_fp80 @copysignl(x86_fp80, x86_fp80) nounwind readnone