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author | Dimitry Andric <dim@FreeBSD.org> | 2017-12-18 20:10:56 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2017-12-18 20:10:56 +0000 |
commit | 044eb2f6afba375a914ac9d8024f8f5142bb912e (patch) | |
tree | 1475247dc9f9fe5be155ebd4c9069c75aadf8c20 /test/CodeGen/X86/lea-opt-cse3.ll | |
parent | eb70dddbd77e120e5d490bd8fbe7ff3f8fa81c6b (diff) | |
download | src-test-044eb2f6afba375a914ac9d8024f8f5142bb912e.tar.gz src-test-044eb2f6afba375a914ac9d8024f8f5142bb912e.zip |
Notes
Diffstat (limited to 'test/CodeGen/X86/lea-opt-cse3.ll')
-rw-r--r-- | test/CodeGen/X86/lea-opt-cse3.ll | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/test/CodeGen/X86/lea-opt-cse3.ll b/test/CodeGen/X86/lea-opt-cse3.ll new file mode 100644 index 0000000000000..d0b5a281186f5 --- /dev/null +++ b/test/CodeGen/X86/lea-opt-cse3.ll @@ -0,0 +1,162 @@ +; 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: def %esi killed %esi def %rsi +; X64-NEXT: # kill: def %edi killed %edi def %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: def %esi killed %esi def %rsi +; X64-NEXT: # kill: def %edi killed %edi def %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: def %esi killed %esi def %rsi +; X64-NEXT: # kill: def %edi killed %edi def %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: def %esi killed %esi def %rsi +; X64-NEXT: # kill: def %edi killed %edi def %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 +} |