; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s -check-prefix=X64 ; RUN: llc < %s -mtriple=i686-unknown | FileCheck %s -check-prefix=X86 define i32 @foo(i32 %a, i32 %b) local_unnamed_addr #0 { ; X64-LABEL: foo: ; X64: # BB#0: # %entry ; X64-NEXT: # kill: %ESI %ESI %RSI ; X64-NEXT: # kill: %EDI %EDI %RDI ; X64-NEXT: leal 4(%rdi,%rsi,2), %ecx ; X64-NEXT: leal 4(%rdi,%rsi,4), %eax ; X64-NEXT: imull %ecx, %eax ; X64-NEXT: retq ; ; X86-LABEL: foo: ; X86: # BB#0: # %entry ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NEXT: leal 4(%ecx,%eax,2), %edx ; X86-NEXT: leal 4(%ecx,%eax,4), %eax ; X86-NEXT: imull %edx, %eax ; X86-NEXT: retl entry: %mul = shl i32 %b, 1 %add = add i32 %a, 4 %add1 = add i32 %add, %mul %mul2 = shl i32 %b, 2 %add4 = add i32 %add, %mul2 %mul5 = mul nsw i32 %add1, %add4 ret i32 %mul5 } define i32 @foo1(i32 %a, i32 %b) local_unnamed_addr #0 { ; X64-LABEL: foo1: ; X64: # BB#0: # %entry ; X64-NEXT: # kill: %ESI %ESI %RSI ; X64-NEXT: # kill: %EDI %EDI %RDI ; X64-NEXT: leal 4(%rdi,%rsi,4), %ecx ; X64-NEXT: leal 4(%rdi,%rsi,8), %eax ; X64-NEXT: imull %ecx, %eax ; X64-NEXT: retq ; ; X86-LABEL: foo1: ; X86: # BB#0: # %entry ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NEXT: leal 4(%ecx,%eax,4), %edx ; X86-NEXT: leal 4(%ecx,%eax,8), %eax ; X86-NEXT: imull %edx, %eax ; X86-NEXT: retl entry: %mul = shl i32 %b, 2 %add = add i32 %a, 4 %add1 = add i32 %add, %mul %mul2 = shl i32 %b, 3 %add4 = add i32 %add, %mul2 %mul5 = mul nsw i32 %add1, %add4 ret i32 %mul5 } define i32 @foo1_mult_basic_blocks(i32 %a, i32 %b) local_unnamed_addr #0 { ; X64-LABEL: foo1_mult_basic_blocks: ; X64: # BB#0: # %entry ; X64-NEXT: # kill: %ESI %ESI %RSI ; X64-NEXT: # kill: %EDI %EDI %RDI ; X64-NEXT: leal 4(%rdi,%rsi,4), %ecx ; X64-NEXT: xorl %eax, %eax ; X64-NEXT: cmpl $10, %ecx ; X64-NEXT: je .LBB2_2 ; X64-NEXT: # BB#1: # %mid ; X64-NEXT: leal 4(%rdi,%rsi,8), %eax ; X64-NEXT: imull %eax, %ecx ; X64-NEXT: movl %ecx, %eax ; X64-NEXT: .LBB2_2: # %exit ; X64-NEXT: retq ; ; X86-LABEL: foo1_mult_basic_blocks: ; X86: # BB#0: # %entry ; X86-NEXT: pushl %esi ; X86-NEXT: .cfi_def_cfa_offset 8 ; X86-NEXT: .cfi_offset %esi, -8 ; X86-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NEXT: leal 4(%esi,%edx,4), %ecx ; X86-NEXT: xorl %eax, %eax ; X86-NEXT: cmpl $10, %ecx ; X86-NEXT: je .LBB2_2 ; X86-NEXT: # BB#1: # %mid ; X86-NEXT: leal 4(%esi,%edx,8), %eax ; X86-NEXT: imull %eax, %ecx ; X86-NEXT: movl %ecx, %eax ; X86-NEXT: .LBB2_2: # %exit ; X86-NEXT: popl %esi ; X86-NEXT: retl entry: %mul = shl i32 %b, 2 %add = add i32 %a, 4 %add1 = add i32 %add, %mul %cmp = icmp ne i32 %add1 , 10 br i1 %cmp , label %mid , label %exit mid: %addn = add i32 %a , 4 %mul2 = shl i32 %b, 3 %add4 = add i32 %addn, %mul2 %mul5 = mul nsw i32 %add1, %add4 br label %exit exit: %retmul = phi i32 [%mul5 , %mid] , [0 , %entry] ret i32 %retmul } define i32 @foo1_mult_basic_blocks_illegal_scale(i32 %a, i32 %b) local_unnamed_addr #0 { ; X64-LABEL: foo1_mult_basic_blocks_illegal_scale: ; X64: # BB#0: # %entry ; X64-NEXT: # kill: %ESI %ESI %RSI ; X64-NEXT: # kill: %EDI %EDI %RDI ; X64-NEXT: leal 4(%rdi,%rsi,2), %ecx ; X64-NEXT: xorl %eax, %eax ; X64-NEXT: cmpl $10, %ecx ; X64-NEXT: je .LBB3_2 ; X64-NEXT: # BB#1: # %mid ; X64-NEXT: leal 4(%rdi,%rsi,8), %eax ; X64-NEXT: imull %eax, %ecx ; X64-NEXT: movl %ecx, %eax ; X64-NEXT: .LBB3_2: # %exit ; X64-NEXT: retq ; ; X86-LABEL: foo1_mult_basic_blocks_illegal_scale: ; X86: # BB#0: # %entry ; X86-NEXT: pushl %esi ; X86-NEXT: .cfi_def_cfa_offset 8 ; X86-NEXT: .cfi_offset %esi, -8 ; X86-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NEXT: leal 4(%esi,%edx,2), %ecx ; X86-NEXT: xorl %eax, %eax ; X86-NEXT: cmpl $10, %ecx ; X86-NEXT: je .LBB3_2 ; X86-NEXT: # BB#1: # %mid ; X86-NEXT: leal 4(%esi,%edx,8), %eax ; X86-NEXT: imull %eax, %ecx ; X86-NEXT: movl %ecx, %eax ; X86-NEXT: .LBB3_2: # %exit ; X86-NEXT: popl %esi ; X86-NEXT: retl entry: %mul = shl i32 %b, 1 %add = add i32 %a, 4 %add1 = add i32 %add, %mul %cmp = icmp ne i32 %add1 , 10 br i1 %cmp, label %mid , label %exit mid: %addn = add i32 %a , 4 %mul2 = shl i32 %b, 3 %add4 = add i32 %addn, %mul2 %mul5 = mul nsw i32 %add1, %add4 br label %exit exit: %retmul = phi i32 [%mul5 , %mid] , [0 , %entry] ret i32 %retmul }