72 lines
2.3 KiB
LLVM
72 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefix=X64
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define i32 @mask_add_sext_i32_i64(ptr %base, i32 %i) {
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; X86-LABEL: mask_add_sext_i32_i64:
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; X86: # %bb.0:
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; X86-NEXT: movsbl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl 12(%ecx,%eax,4), %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: mask_add_sext_i32_i64:
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; X64: # %bb.0:
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; X64-NEXT: sarl $24, %esi
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; X64-NEXT: movslq %esi, %rax
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; X64-NEXT: movl 12(%rdi,%rax,4), %eax
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; X64-NEXT: retq
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%mask = ashr i32 %i, 24
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%offset = add i32 %mask, 3
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%sext = sext i32 %offset to i64
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%gep = getelementptr i32, ptr %base, i64 %sext
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%ret = load i32, ptr %gep
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ret i32 %ret
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}
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define i32 @mask_add_zext_i32_i64(ptr %base, i32 %i) {
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; X86-LABEL: mask_add_zext_i32_i64:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: andl $15, %ecx
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; X86-NEXT: movl 12(%eax,%ecx,4), %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: mask_add_zext_i32_i64:
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; X64: # %bb.0:
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; X64-NEXT: # kill: def $esi killed $esi def $rsi
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; X64-NEXT: andl $15, %esi
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; X64-NEXT: movl 12(%rdi,%rsi,4), %eax
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; X64-NEXT: retq
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%mask = and i32 %i, 15
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%offset = add i32 %mask, 3
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%zext = zext i32 %offset to i64
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%gep = getelementptr i32, ptr %base, i64 %zext
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%ret = load i32, ptr %gep
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ret i32 %ret
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}
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define i32 @mask_offset_scale_zext_i32_i64(ptr %base, i32 %i) {
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; X86-LABEL: mask_offset_scale_zext_i32_i64:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: shll $11, %ecx
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; X86-NEXT: movl 48(%eax,%ecx), %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: mask_offset_scale_zext_i32_i64:
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; X64: # %bb.0:
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; X64-NEXT: # kill: def $esi killed $esi def $rsi
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; X64-NEXT: andl $65280, %esi # imm = 0xFF00
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; X64-NEXT: movl 48(%rdi,%rsi,8), %eax
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; X64-NEXT: retq
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%mask = and i32 %i, 65280
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%offset = or i32 %mask, 6
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%scale = shl i32 %offset, 1
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%idxprom = zext i32 %scale to i64
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%arrayidx = getelementptr inbounds i32, ptr %base, i64 %idxprom
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%load = load i32, ptr %arrayidx, align 4
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ret i32 %load
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}
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