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-LABEL: f1: 17 18 ; CHECK: addiu $sp, $sp, -32 19 ; CHECK: addiu $2, $sp, 32 20 } 21 22 23 define i8* @f2() nounwind { 24 entry: 25 %x = alloca [65536 x i8], align 1 26 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 27 ret i8* %0 28 29 ; CHECK-LABEL: f2: 30 31 ; check stack size (65536 + 8) 32 ; CHECK: lui $[[R0:[a-z0-9]+]], 1 33 ; CHECK: addiu $[[R0]], $[[R0]], 8 34 ; CHECK: subu $sp, $sp, $[[R0]] 35 36 ; check return value ($sp + stack size) 37 ; CHECK: lui $[[R1:[a-z0-9]+]], 1 38 ; CHECK: addu $[[R1]], $sp, $[[R1]] 39 ; CHECK: addiu $2, $[[R1]], 8 40 } 41 42 43 define i32 @f3() nounwind { 44 entry: 45 %x = alloca [32 x i8], align 1 46 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 47 %1 = ptrtoint i8* %0 to i32 48 %2 = call i8* @llvm.frameaddress(i32 0) 49 %3 = ptrtoint i8* %2 to i32 50 %add = add i32 %1, %3 51 ret i32 %add 52 53 ; CHECK-LABEL: f3: 54 55 ; CHECK: addiu $sp, $sp, -40 56 57 ; check return value ($fp + stack size + $fp) 58 ; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40 59 ; CHECK: addu $2, $[[R0]], $fp 60 } 61 62 63 define i8* @f4() nounwind { 64 entry: 65 %x = alloca [32 x i8], align 1 66 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) 67 ret i8* %0 68 69 ; CHECK-LABEL: f4: 70 71 ; CHECK-MIPS64: daddiu $sp, $sp, -32 72 ; CHECK-MIPS64: daddiu $2, $sp, 32 73 } 74
