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Add support for trampolines on the XCore.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124722 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Osborne
2011-02-02 14:57:41 +00:00
parent ae200c60c3
commit ff0c5014b2
5 changed files with 109 additions and 1 deletions
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37
test/CodeGen/XCore/trampoline.ll Normal file
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@@ -0,0 +1,37 @@
; RUN: llc < %s -march=xcore | FileCheck %s
%struct.FRAME.f = type { i32, i32 ()* }
define void @f() nounwind {
entry:
; CHECK: f:
; CHECK ldap r11, g.1101
; CHECK stw r11, sp[7]
%TRAMP.23 = alloca [20 x i8], align 2
%FRAME.0 = alloca %struct.FRAME.f, align 4
%TRAMP.23.sub = getelementptr inbounds [20 x i8]* %TRAMP.23, i32 0, i32 0
%FRAME.02 = bitcast %struct.FRAME.f* %FRAME.0 to i8*
%tramp = call i8* @llvm.init.trampoline(i8* %TRAMP.23.sub, i8* bitcast (i32 (%struct.FRAME.f*)* @g.1101 to i8*), i8* %FRAME.02)
%0 = getelementptr inbounds %struct.FRAME.f* %FRAME.0, i32 0, i32 1
%1 = bitcast i8* %tramp to i32 ()*
store i32 ()* %1, i32 ()** %0, align 4
%2 = getelementptr inbounds %struct.FRAME.f* %FRAME.0, i32 0, i32 0
store i32 1, i32* %2, align 4
call void @h(i32 ()* %1) nounwind
ret void
}
define internal i32 @g.1101(%struct.FRAME.f* nocapture nest %CHAIN.1) nounwind readonly {
entry:
; CHECK: g.1101:
; CHECK: ldw r11, sp[0]
; CHECK-NEXT: ldw r0, r11[0]
; CHECK-NEXT: retsp 0
%0 = getelementptr inbounds %struct.FRAME.f* %CHAIN.1, i32 0, i32 0
%1 = load i32* %0, align 4
ret i32 %1
}
declare i8* @llvm.init.trampoline(i8*, i8*, i8*) nounwind
declare void @h(i32 ()*)