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Fix PR7193: if sibling call address can take a register, make sure there are enough registers available by counting inreg arguments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105092 91177308-0d34-0410-b5e6-96231b3b80d8
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Evan Cheng
2010-05-29 01:35:22 +00:00
parent 5a0d4fcb8d
commit 9c044674e6
2 changed files with 34 additions and 0 deletions
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16
test/CodeGen/X86/sibcall-3.ll Normal file
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@@ -0,0 +1,16 @@
; RUN: llc < %s -mtriple=i386-unknown-unknown | FileCheck %s
; PR7193
define void @t1(i8* inreg %dst, i8* inreg %src, i8* inreg %len) nounwind {
; CHECK: t1:
; CHECK: call 0
tail call void null(i8* inreg %dst, i8* inreg %src, i8* inreg %len) nounwind
ret void
}
define void @t2(i8* inreg %dst, i8* inreg %src, i8* inreg %len) nounwind {
; CHECK: t2:
; CHECK: jmpl
tail call void null(i8* inreg %dst, i8* inreg %src) nounwind
ret void
}