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Ensure all defs referring to a virtual register are marked dead by addRegisterDead().

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There can be multiple defs for a single virtual register when they are defining
sub-registers.

The missing <dead> flag was stopping the inline spiller from eliminating dead
code after rematerialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128888 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-04-05 16:53:50 +00:00
parent 8439747236
commit b793bc1cca
2 changed files with 7 additions and 8 deletions
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test/CodeGen/X86/coalescer-cross.ll
+5 -1
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@@ -1,6 +1,10 @@
; RUN: llc < %s -mtriple=i386-apple-darwin10 | not grep movaps
; RUN: llc < %s -mtriple=i386-apple-darwin10 | FileCheck %s
; RUN: llc < %s -mtriple=i386-apple-darwin10 -regalloc=basic | FileCheck %s
; rdar://6509240
; CHECK: os_clock
; CHECK-NOT: movaps
type { %struct.TValue } ; type %0
type { %struct.L_Umaxalign, i32, %struct.Node* } ; type %1
%struct.CallInfo = type { %struct.TValue*, %struct.TValue*, %struct.TValue*, i32*, i32, i32 }