| Akira Hatanaka | e90a3bc | 2012-11-07 19:10:58 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s |
| 2 | ; RUN: llc -march=mips64el -mcpu=mips64 < %s | \ |
| 3 | ; RUN: FileCheck %s -check-prefix=CHECK-MIPS64 |
| 4 | |
| 5 | declare i8* @llvm.eh.dwarf.cfa(i32) nounwind |
| 6 | declare i8* @llvm.frameaddress(i32) nounwind readnone |
| 7 | |
| 8 | define i8* @f1() nounwind { |
| 9 | entry: |
| 10 | %x = alloca [32 x i8], align 1 |
| 11 | %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) |
| 12 | ret i8* %0 |
| 13 | |
| 14 | ; CHECK: addiu $sp, $sp, -32 |
| 15 | ; CHECK: addiu $2, $sp, 32 |
| 16 | } |
| 17 | |
| 18 | |
| 19 | define i8* @f2() nounwind { |
| 20 | entry: |
| 21 | %x = alloca [65536 x i8], align 1 |
| 22 | %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) |
| 23 | ret i8* %0 |
| 24 | |
| 25 | ; check stack size (65536 + 8) |
| 26 | ; CHECK: lui $[[R0:[a-z0-9]+]], 65535 |
| 27 | ; CHECK: addiu $[[R0]], $[[R0]], -8 |
| 28 | ; CHECK: addu $sp, $sp, $[[R0]] |
| 29 | |
| 30 | ; check return value ($sp + stack size) |
| 31 | ; CHECK: lui $[[R1:[a-z0-9]+]], 1 |
| 32 | ; CHECK: addu $[[R1]], $sp, $[[R1]] |
| 33 | ; CHECK: addiu $2, $[[R1]], 8 |
| 34 | } |
| 35 | |
| 36 | |
| 37 | define i32 @f3() nounwind { |
| 38 | entry: |
| 39 | %x = alloca [32 x i8], align 1 |
| 40 | %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) |
| 41 | %1 = ptrtoint i8* %0 to i32 |
| 42 | %2 = call i8* @llvm.frameaddress(i32 0) |
| 43 | %3 = ptrtoint i8* %2 to i32 |
| 44 | %add = add i32 %1, %3 |
| 45 | ret i32 %add |
| 46 | |
| 47 | ; CHECK: addiu $sp, $sp, -40 |
| 48 | |
| 49 | ; check return value ($fp + stack size + $fp) |
| 50 | ; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40 |
| 51 | ; CHECK: addu $2, $[[R0]], $fp |
| 52 | } |
| 53 | |
| 54 | |
| 55 | define i8* @f4() nounwind { |
| 56 | entry: |
| 57 | %x = alloca [32 x i8], align 1 |
| 58 | %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) |
| 59 | ret i8* %0 |
| 60 | |
| 61 | ; CHECK-MIPS64: daddiu $sp, $sp, -32 |
| 62 | ; CHECK-MIPS64: daddiu $2, $sp, 32 |
| 63 | } |