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[XCore] Extend test to check positve offsets are folded into addresses.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179621 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Osborne 2013-04-16 20:05:52 +00:00
parent db51e31527
commit 13a16284a5
1 changed files with 24 additions and 7 deletions
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31
test/CodeGen/XCore/offset_folding.ll
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@ -1,23 +1,40 @@
; RUN: llc < %s -march=xcore | FileCheck %s
; Don't fold negative offsets into cp / dp accesses to avoid a relocation
; error if the address + addend is less than the start of the cp / dp.
@a = external constant [0 x i32], section ".cp.rodata"
@b = external global [0 x i32]
define i32 *@f() nounwind {
define i32 *@f1() nounwind {
entry:
; CHECK: f:
; CHECK: f1:
; CHECK: ldaw r11, cp[a+4]
; CHECK: mov r0, r11
%0 = getelementptr [0 x i32]* @a, i32 0, i32 1
ret i32* %0
}
define i32 *@f2() nounwind {
entry:
; CHECK: f2:
; CHECK: ldaw r0, dp[b+4]
%0 = getelementptr [0 x i32]* @b, i32 0, i32 1
ret i32* %0
}
; Don't fold negative offsets into cp / dp accesses to avoid a relocation
; error if the address + addend is less than the start of the cp / dp.
define i32 *@f3() nounwind {
entry:
; CHECK: f3:
; CHECK: ldaw r11, cp[a]
; CHECK: sub r0, r11, 4
%0 = getelementptr [0 x i32]* @a, i32 0, i32 -1
ret i32* %0
}
define i32 *@g() nounwind {
define i32 *@f4() nounwind {
entry:
; CHECK: g:
; CHECK: f4:
; CHECK: ldaw [[REG:r[0-9]+]], dp[b]
; CHECK: sub r0, [[REG]], 4
%0 = getelementptr [0 x i32]* @b, i32 0, i32 -1