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c66cdf74a9
basic tests. This has been well tested on Darwin but not elsewhere. It should work provided the linker correctly resolves B.W <label in other function> which it has not seen before, at least from llvm-based compilers. I'm leaving the arm-tail-calls switch in until I see if there's any problems because of that; it might need to be disabled for some environments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106299 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
688 B
LLVM
28 lines
688 B
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mattr=+thumb2 | FileCheck %s -check-prefix=DARWIN
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; RUN: llc < %s -mtriple=thumbv7-linux -mattr=+thumb2 | FileCheck %s -check-prefix=LINUX
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@t = weak global i32 ()* null ; <i32 ()**> [#uses=1]
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declare void @g(i32, i32, i32, i32)
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define void @f() {
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; DARWIN: f:
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; DARWIN: blx _g
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; LINUX: f:
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; LINUX: bl g
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call void @g( i32 1, i32 2, i32 3, i32 4 )
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ret void
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}
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define void @h() {
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; DARWIN: h:
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; DARWIN: bx r0 @ TAILCALL
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; LINUX: h:
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; LINUX: bx r0 @ TAILCALL
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%tmp = load i32 ()** @t ; <i32 ()*> [#uses=1]
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%tmp.upgrd.2 = tail call i32 %tmp( ) ; <i32> [#uses=0]
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ret void
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}
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