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Update an insertion point iterator after replacing a return instruction with a

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tail call pseudoinstruction. This fixes <rdar://problem/9624333>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133227 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2011-06-17 02:16:43 +00:00
parent e1fd84af7a
commit cd4e0b593d
2 changed files with 21 additions and 0 deletions
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1
lib/Target/ARM/ARMFrameLowering.cpp
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@ -427,6 +427,7 @@ void ARMFrameLowering::emitEpilogue(MachineFunction &MF,
// Delete the pseudo instruction TCRETURN.
MBB.erase(MBBI);
MBBI = NewMI;
}
if (VARegSaveSize)

20
test/CodeGen/ARM/2011-06-16-TailCallByVal.ll Normal file
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@ -0,0 +1,20 @@
; RUN: llc < %s -arm-tail-calls=1 | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-darwin10"
%struct.A = type <{ i16, i16, i32, i16, i16, i32, i16, [8 x %struct.B], [418 x i8], %struct.C }>
%struct.B = type <{ i32, i16, i16 }>
%struct.C = type { i16, i32, i16, i16 }
; CHECK: f
; CHECK: push {r1, r2, r3}
; CHECK: add sp, #12
; CHECK: b.w _puts
define void @f(i8* %s, %struct.A* nocapture byval %a) nounwind optsize {
entry:
%puts = tail call i32 @puts(i8* %s)
ret void
}
declare i32 @puts(i8* nocapture) nounwind