llvm-6502/test/CodeGen/X86/twoaddr-coalesce-2.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

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731 B
LLVM

; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -stats |& \
; RUN: grep {twoaddrinstr} | grep {Number of instructions aggressively commuted}
; rdar://6480363
target triple = "i386-apple-darwin9.6"
define <2 x double> @t(<2 x double> %A, <2 x double> %B, <2 x double> %C) nounwind readnone {
entry:
%tmp.i3 = bitcast <2 x double> %B to <2 x i64> ; <<2 x i64>> [#uses=1]
%tmp2.i = or <2 x i64> %tmp.i3, <i64 4607632778762754458, i64 4607632778762754458> ; <<2 x i64>> [#uses=1]
%tmp3.i = bitcast <2 x i64> %tmp2.i to <2 x double> ; <<2 x double>> [#uses=1]
%tmp.i2 = fadd <2 x double> %tmp3.i, %A ; <<2 x double>> [#uses=1]
%tmp.i = fadd <2 x double> %tmp.i2, %C ; <<2 x double>> [#uses=1]
ret <2 x double> %tmp.i
}