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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 | 1116868a0da41326eca5ecf8c9c7eb655effcac2 (patch) | |
| tree | 5980d14c68e627659d6a33098f01cb0736db2095 /llvm/test | |
| parent | 9c338504e587cbdba54c3ab279d553d7eec81265 (diff) | |
| download | bcm5719-llvm-1116868a0da41326eca5ecf8c9c7eb655effcac2.tar.gz bcm5719-llvm-1116868a0da41326eca5ecf8c9c7eb655effcac2.zip | |
[Sparc] Emit large negative adjustments to SP/FP with sethi+xor instead of sethi+or. This generates correct code for both sparc32 and sparc64.
llvm-svn: 195576
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/SPARC/64abi.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SPARC/64abi.ll b/llvm/test/CodeGen/SPARC/64abi.ll index 8a5c996a571..8b752a1a2c3 100644 --- a/llvm/test/CodeGen/SPARC/64abi.ll +++ b/llvm/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*) |
