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| author | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-11-24 20:23:25 +0000 |
|---|---|---|
| committer | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-11-24 20:23:25 +0000 |
| commit | 2fee935bbaa72bc0f438378156f6f741a9ab9662 (patch) | |
| tree | 2f0d700b801ea5e0718f89430dc9359d218a78d0 /test | |
| parent | 845e93818ac5a41c43c412359cdf44c3be93efc9 (diff) | |
| download | llvm-2fee935bbaa72bc0f438378156f6f741a9ab9662.tar.gz llvm-2fee935bbaa72bc0f438378156f6f741a9ab9662.tar.bz2 llvm-2fee935bbaa72bc0f438378156f6f741a9ab9662.tar.xz | |
[Sparc] Emit large negative adjustments to SP/FP with sethi+xor instead of sethi+or. This generates correct code for both sparc32 and sparc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195576 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/SPARC/64abi.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/SPARC/64abi.ll b/test/CodeGen/SPARC/64abi.ll index 8a5c996a57..8b752a1a2c 100644 --- a/test/CodeGen/SPARC/64abi.ll +++ b/test/CodeGen/SPARC/64abi.ll @@ -390,3 +390,24 @@ entry: %2 = add nsw i32 %0, %1 ret i32 %2 } + +; CHECK-LABEL: test_large_stack + +; CHECK: sethi 16, %g1 +; CHECK: xor %g1, -176, %g1 +; CHECK: save %sp, %g1, %sp + +; CHECK: sethi 14, %g1 +; CHECK: xor %g1, -1, %g1 +; CHECK: add %g1, %fp, %g1 +; CHECK: call use_buf + +define i32 @test_large_stack() { +entry: + %buffer1 = alloca [16384 x i8], align 8 + %buffer1.sub = getelementptr inbounds [16384 x i8]* %buffer1, i32 0, i32 0 + %0 = call i32 @use_buf(i32 16384, i8* %buffer1.sub) + ret i32 %0 +} + +declare i32 @use_buf(i32, i8*) |