llvm/test/CodeGen/X86/2009-11-04-SubregCoalescingBug.ll

; RUN: llc < %s -mtriple=x86_64-apple-darwin11 | FileCheck %s
; rdar://7362871

define void @bar(i32 %b, i32 %a) nounwind optsize ssp {
entry:
; CHECK:     leal 15(%rsi), %edi
; CHECK-NOT: movl
; CHECK:     _foo
  %0 = add i32 %a, 15                             ; <i32> [#uses=1]
  %1 = zext i32 %0 to i64                         ; <i64> [#uses=1]
  tail call void @foo(i64 %1) nounwind
  ret void
}

declare void @foo(i64)
RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg, and extract_subreg as a "copy" that defines a valno. Also fixes a typo. These two issues prevent a simple subreg coalescing from happening before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86022 91177308-0d34-0410-b5e6-96231b3b80d8 2009-11-04 08:33:14 +00:00			`; RUN: llc < %s -mtriple=x86_64-apple-darwin11 \| FileCheck %s`
			`; rdar://7362871`

			`define void @bar(i32 %b, i32 %a) nounwind optsize ssp {`
			`entry:`
			`; CHECK: leal 15(%rsi), %edi`
			`; CHECK-NOT: movl`
Make test less fragile git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95258 91177308-0d34-0410-b5e6-96231b3b80d8 2010-02-03 21:39:04 +00:00			`; CHECK: _foo`
RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg, and extract_subreg as a "copy" that defines a valno. Also fixes a typo. These two issues prevent a simple subreg coalescing from happening before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86022 91177308-0d34-0410-b5e6-96231b3b80d8 2009-11-04 08:33:14 +00:00			`%0 = add i32 %a, 15 ; <i32> [#uses=1]`
			`%1 = zext i32 %0 to i64 ; <i64> [#uses=1]`
			`tail call void @foo(i64 %1) nounwind`
			`ret void`
			`}`

			`declare void @foo(i64)`