llvm-6502/test/Transforms/InstCombine/2009-02-04-FPBitcast.ll

; RUN: opt < %s -instcombine
; PR3468

define x86_fp80 @cast() {
	%tmp = bitcast i80 0 to x86_fp80		; <x86_fp80> [#uses=1]
	ret x86_fp80 %tmp
}

define i80 @invcast() {
	%tmp = bitcast x86_fp80 0xK00000000000000000000 to i80		; <i80> [#uses=1]
	ret i80 %tmp
}
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-11 18:01:28 +00:00			`; RUN: opt < %s -instcombine`
Fix PR3468: a crash when constant folding a bitcast of i80 to x86 long double (this was presumably generated by sroa). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63730 91177308-0d34-0410-b5e6-96231b3b80d8 2009-02-04 10:17:14 +00:00			`; PR3468`

			`define x86_fp80 @cast() {`
			`%tmp = bitcast i80 0 to x86_fp80 ; <x86_fp80> [#uses=1]`
			`ret x86_fp80 %tmp`
			`}`
Allow the inverse transform x86_fp80 -> i80 (also fires during the Ada build). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63731 91177308-0d34-0410-b5e6-96231b3b80d8 2009-02-04 11:17:06 +00:00
			`define i80 @invcast() {`
			`%tmp = bitcast x86_fp80 0xK00000000000000000000 to i80 ; <i80> [#uses=1]`
			`ret i80 %tmp`
			`}`