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| author | Akira Hatanaka <ahatanaka@mips.com> | 2012-11-07 19:10:58 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-11-07 19:10:58 +0000 |
| commit | e90a3bcae1cd936aa760cffe5607266279b210d1 (patch) | |
| tree | 49ef53997f8308aefa389e258bc3e6b948205be9 /test/CodeGen | |
| parent | 7085221a593ac5cb2478a4f81e0f7212616a9afb (diff) | |
| download | external_llvm-e90a3bcae1cd936aa760cffe5607266279b210d1.zip external_llvm-e90a3bcae1cd936aa760cffe5607266279b210d1.tar.gz external_llvm-e90a3bcae1cd936aa760cffe5607266279b210d1.tar.bz2 | |
[mips] Custom-lower ISD::FRAME_TO_ARGS_OFFSET node.
Patch by Sasa Stankovic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167548 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/Mips/eh-dwarf-cfa.ll | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/eh-dwarf-cfa.ll b/test/CodeGen/Mips/eh-dwarf-cfa.ll new file mode 100644 index 0000000..3a21332 --- /dev/null +++ b/test/CodeGen/Mips/eh-dwarf-cfa.ll @@ -0,0 +1,63 @@ +; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s +; RUN: llc -march=mips64el -mcpu=mips64 < %s | \ +; RUN: FileCheck %s -check-prefix=CHECK-MIPS64 + +declare i8* @llvm.eh.dwarf.cfa(i32) nounwind +declare i8* @llvm.frameaddress(i32) nounwind readnone + +define i8* @f1() nounwind { +entry: + %x = alloca [32 x i8], align 1 + %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) + ret i8* %0 + +; CHECK: addiu $sp, $sp, -32 +; CHECK: addiu $2, $sp, 32 +} + + +define i8* @f2() nounwind { +entry: + %x = alloca [65536 x i8], align 1 + %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) + ret i8* %0 + +; check stack size (65536 + 8) +; CHECK: lui $[[R0:[a-z0-9]+]], 65535 +; CHECK: addiu $[[R0]], $[[R0]], -8 +; CHECK: addu $sp, $sp, $[[R0]] + +; check return value ($sp + stack size) +; CHECK: lui $[[R1:[a-z0-9]+]], 1 +; CHECK: addu $[[R1]], $sp, $[[R1]] +; CHECK: addiu $2, $[[R1]], 8 +} + + +define i32 @f3() nounwind { +entry: + %x = alloca [32 x i8], align 1 + %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) + %1 = ptrtoint i8* %0 to i32 + %2 = call i8* @llvm.frameaddress(i32 0) + %3 = ptrtoint i8* %2 to i32 + %add = add i32 %1, %3 + ret i32 %add + +; CHECK: addiu $sp, $sp, -40 + +; check return value ($fp + stack size + $fp) +; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40 +; CHECK: addu $2, $[[R0]], $fp +} + + +define i8* @f4() nounwind { +entry: + %x = alloca [32 x i8], align 1 + %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) + ret i8* %0 + +; CHECK-MIPS64: daddiu $sp, $sp, -32 +; CHECK-MIPS64: daddiu $2, $sp, 32 +} |