1 ; RUN: llc -mtriple=i686-unknown-linux-gnu -enable-misched=false < %s | FileCheck %s 2 3 define fastcc i8 @fold32to8(i32 %add, i8 %spill) { 4 ; CHECK-LABEL: fold32to8: 5 ; CHECK: movl %ecx, (%esp) # 4-byte Spill 6 ; CHECK: subb (%esp), %dl # 1-byte Folded Reload 7 entry: 8 tail call void asm sideeffect "", "~{eax},~{ebx},~{ecx},~{edi},~{esi},~{ebp},~{dirflag},~{fpsr},~{flags}"() 9 %trunc = trunc i32 %add to i8 10 %sub = sub i8 %spill, %trunc 11 ret i8 %sub 12 } 13 14 ; Do not fold a 1-byte store into a 4-byte spill slot 15 define fastcc i8 @nofold(i32 %add, i8 %spill) { 16 ; CHECK-LABEL: nofold: 17 ; CHECK: movl %edx, (%esp) # 4-byte Spill 18 ; CHECK: movl (%esp), %eax # 4-byte Reload 19 ; CHECK: subb %cl, %al 20 entry: 21 tail call void asm sideeffect "", "~{eax},~{ebx},~{edx},~{edi},~{esi},~{ebp},~{dirflag},~{fpsr},~{flags}"() 22 %trunc = trunc i32 %add to i8 23 %sub = sub i8 %spill, %trunc 24 ret i8 %sub 25 } 26
