1 ; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s 2 ; RUN: llc -march=mips64el -mcpu=mips4 < %s | \ 3 ; RUN: FileCheck %s -check-prefix=CHECK-MIPS64 4 ; RUN: llc -march=mips64el -mcpu=mips64 < %s | \ 5 ; RUN: FileCheck %s -check-prefix=CHECK-MIPS64 6 7 declare i8* @llvm.eh.dwarf.cfa(i32) nounwind 8 declare i8* @llvm.frameaddress(i32) nounwind readnone 9 10 define i8* @f1() nounwind { 11 entry: 12 %x = alloca [32 x i8], align 1 13 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 14 ret i8* %0 15 16 ; CHECK: addiu $sp, $sp, -32 17 ; CHECK: addiu $2, $sp, 32 18 } 19 20 21 define i8* @f2() nounwind { 22 entry: 23 %x = alloca [65536 x i8], align 1 24 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 25 ret i8* %0 26 27 ; check stack size (65536 + 8) 28 ; CHECK: lui $[[R0:[a-z0-9]+]], 65535 29 ; CHECK: addiu $[[R0]], $[[R0]], -8 30 ; CHECK: addu $sp, $sp, $[[R0]] 31 32 ; check return value ($sp + stack size) 33 ; CHECK: lui $[[R1:[a-z0-9]+]], 1 34 ; CHECK: addu $[[R1]], $sp, $[[R1]] 35 ; CHECK: addiu $2, $[[R1]], 8 36 } 37 38 39 define i32 @f3() nounwind { 40 entry: 41 %x = alloca [32 x i8], align 1 42 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 43 %1 = ptrtoint i8* %0 to i32 44 %2 = call i8* @llvm.frameaddress(i32 0) 45 %3 = ptrtoint i8* %2 to i32 46 %add = add i32 %1, %3 47 ret i32 %add 48 49 ; CHECK: addiu $sp, $sp, -40 50 51 ; check return value ($fp + stack size + $fp) 52 ; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40 53 ; CHECK: addu $2, $[[R0]], $fp 54 } 55 56 57 define i8* @f4() nounwind { 58 entry: 59 %x = alloca [32 x i8], align 1 60 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 61 ret i8* %0 62 63 ; CHECK-MIPS64: daddiu $sp, $sp, -32 64 ; CHECK-MIPS64: daddiu $2, $sp, 32 65 } 66
