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
diff --git a/test/CodeGen/X86/2008-02-08-LoadFoldingBug.ll b/test/CodeGen/X86/2008-02-08-LoadFoldingBug.ll
index b3fe9ab..230af57 100644
--- a/test/CodeGen/X86/2008-02-08-LoadFoldingBug.ll
+++ b/test/CodeGen/X86/2008-02-08-LoadFoldingBug.ll
@@ -33,23 +33,23 @@
 	br i1 %tmp10.i.i30, label %bb13.i.i37, label %bb30.i.i43
 
 bb13.i.i37:		; preds = %bb5.i.i31
-	%tmp15.i.i32 = sub double -0.000000e+00, %tmp22.i25		; <double> [#uses=1]
+	%tmp15.i.i32 = fsub double -0.000000e+00, %tmp22.i25		; <double> [#uses=1]
 	%tmp17.i.i33 = fdiv double %tmp15.i.i32, %tmp12.i23		; <double> [#uses=3]
-	%tmp20.i4.i = mul double %tmp17.i.i33, %tmp17.i.i33		; <double> [#uses=1]
-	%tmp21.i.i34 = add double %tmp20.i4.i, 1.000000e+00		; <double> [#uses=1]
+	%tmp20.i4.i = fmul double %tmp17.i.i33, %tmp17.i.i33		; <double> [#uses=1]
+	%tmp21.i.i34 = fadd double %tmp20.i4.i, 1.000000e+00		; <double> [#uses=1]
 	%tmp22.i.i35 = call double @llvm.sqrt.f64( double %tmp21.i.i34 ) nounwind 		; <double> [#uses=1]
 	%tmp23.i5.i = fdiv double 1.000000e+00, %tmp22.i.i35		; <double> [#uses=2]
-	%tmp28.i.i36 = mul double %tmp23.i5.i, %tmp17.i.i33		; <double> [#uses=1]
+	%tmp28.i.i36 = fmul double %tmp23.i5.i, %tmp17.i.i33		; <double> [#uses=1]
 	br label %Givens.exit.i49
 
 bb30.i.i43:		; preds = %bb5.i.i31
-	%tmp32.i.i38 = sub double -0.000000e+00, %tmp12.i23		; <double> [#uses=1]
+	%tmp32.i.i38 = fsub double -0.000000e+00, %tmp12.i23		; <double> [#uses=1]
 	%tmp34.i.i39 = fdiv double %tmp32.i.i38, %tmp22.i25		; <double> [#uses=3]
-	%tmp37.i6.i = mul double %tmp34.i.i39, %tmp34.i.i39		; <double> [#uses=1]
-	%tmp38.i.i40 = add double %tmp37.i6.i, 1.000000e+00		; <double> [#uses=1]
+	%tmp37.i6.i = fmul double %tmp34.i.i39, %tmp34.i.i39		; <double> [#uses=1]
+	%tmp38.i.i40 = fadd double %tmp37.i6.i, 1.000000e+00		; <double> [#uses=1]
 	%tmp39.i7.i = call double @llvm.sqrt.f64( double %tmp38.i.i40 ) nounwind 		; <double> [#uses=1]
 	%tmp40.i.i41 = fdiv double 1.000000e+00, %tmp39.i7.i		; <double> [#uses=2]
-	%tmp45.i.i42 = mul double %tmp40.i.i41, %tmp34.i.i39		; <double> [#uses=1]
+	%tmp45.i.i42 = fmul double %tmp40.i.i41, %tmp34.i.i39		; <double> [#uses=1]
 	br label %Givens.exit.i49
 
 Givens.exit.i49:		; preds = %bb3.i27.Givens.exit.i49_crit_edge, %bb30.i.i43, %bb13.i.i37