llvm-6502/test/CodeGen/X86/pre-split5.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

57 lines
2.5 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -pre-alloc-split
target triple = "i386-apple-darwin9.5"
%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
%struct.__sFILEX = type opaque
%struct.__sbuf = type { i8*, i32 }
@"\01LC1" = external constant [48 x i8] ; <[48 x i8]*> [#uses=1]
define i32 @main() nounwind {
entry:
br label %bb5.us
bb5.us: ; preds = %bb8.split, %bb5.us, %entry
%i.0.reg2mem.0.ph = phi i32 [ 0, %entry ], [ %indvar.next53, %bb8.split ], [ %i.0.reg2mem.0.ph, %bb5.us ] ; <i32> [#uses=2]
%j.0.reg2mem.0.us = phi i32 [ %indvar.next47, %bb5.us ], [ 0, %bb8.split ], [ 0, %entry ] ; <i32> [#uses=1]
%indvar.next47 = add i32 %j.0.reg2mem.0.us, 1 ; <i32> [#uses=2]
%exitcond48 = icmp eq i32 %indvar.next47, 256 ; <i1> [#uses=1]
br i1 %exitcond48, label %bb8.split, label %bb5.us
bb8.split: ; preds = %bb5.us
%indvar.next53 = add i32 %i.0.reg2mem.0.ph, 1 ; <i32> [#uses=2]
%exitcond54 = icmp eq i32 %indvar.next53, 256 ; <i1> [#uses=1]
br i1 %exitcond54, label %bb11, label %bb5.us
bb11: ; preds = %bb11, %bb8.split
%i.1.reg2mem.0 = phi i32 [ %indvar.next44, %bb11 ], [ 0, %bb8.split ] ; <i32> [#uses=1]
%indvar.next44 = add i32 %i.1.reg2mem.0, 1 ; <i32> [#uses=2]
%exitcond45 = icmp eq i32 %indvar.next44, 63 ; <i1> [#uses=1]
br i1 %exitcond45, label %bb14, label %bb11
bb14: ; preds = %bb14, %bb11
%indvar = phi i32 [ %indvar.next40, %bb14 ], [ 0, %bb11 ] ; <i32> [#uses=1]
%indvar.next40 = add i32 %indvar, 1 ; <i32> [#uses=2]
%exitcond41 = icmp eq i32 %indvar.next40, 32768 ; <i1> [#uses=1]
br i1 %exitcond41, label %bb28, label %bb14
bb28: ; preds = %bb14
%0 = fdiv double 2.550000e+02, 0.000000e+00 ; <double> [#uses=1]
br label %bb30
bb30: ; preds = %bb36, %bb28
%m.1.reg2mem.0 = phi i32 [ %m.0, %bb36 ], [ 0, %bb28 ] ; <i32> [#uses=1]
%1 = fmul double 0.000000e+00, %0 ; <double> [#uses=1]
%2 = fptosi double %1 to i32 ; <i32> [#uses=1]
br i1 false, label %bb36, label %bb35
bb35: ; preds = %bb30
%3 = tail call i32 (%struct.FILE*, i8*, ...)* @fprintf(%struct.FILE* null, i8* getelementptr ([48 x i8]* @"\01LC1", i32 0, i32 0), i32 0, i32 0, i32 0, i32 %2) nounwind ; <i32> [#uses=0]
br label %bb36
bb36: ; preds = %bb35, %bb30
%m.0 = phi i32 [ 0, %bb35 ], [ %m.1.reg2mem.0, %bb30 ] ; <i32> [#uses=1]
br label %bb30
}
declare i32 @fprintf(%struct.FILE*, i8*, ...) nounwind