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| author | Richard Osborne <richard@xmos.com> | 2013-04-16 19:56:55 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2013-04-16 19:56:55 +0000 |
| commit | db51e31527a4288c38bc948d582e4bcfc76906d8 (patch) | |
| tree | 9e2487d7510292bb0553eaea58d76b50cbf387fc /test/CodeGen/XCore/offset_folding.ll | |
| parent | b509b65240859d151a3961b08b403e4f5fad556b (diff) | |
| download | llvm-db51e31527a4288c38bc948d582e4bcfc76906d8.tar.gz llvm-db51e31527a4288c38bc948d582e4bcfc76906d8.tar.bz2 llvm-db51e31527a4288c38bc948d582e4bcfc76906d8.tar.xz | |
[XCore] Give test more generic name.
I intend to extend the test with more offset folding checks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179620 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/XCore/offset_folding.ll')
| -rw-r--r-- | test/CodeGen/XCore/offset_folding.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/XCore/offset_folding.ll b/test/CodeGen/XCore/offset_folding.ll new file mode 100644 index 0000000000..0328fb0460 --- /dev/null +++ b/test/CodeGen/XCore/offset_folding.ll @@ -0,0 +1,25 @@ +; 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 { +entry: +; CHECK: f: +; 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 { +entry: +; CHECK: g: +; CHECK: ldaw [[REG:r[0-9]+]], dp[b] +; CHECK: sub r0, [[REG]], 4 + %0 = getelementptr [0 x i32]* @b, i32 0, i32 -1 + ret i32* %0 +} |