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llvm-project/llvm/test/CodeGen/X86/bswap_tree.ll

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[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=CHECK64
; Check reconstructing bswap from shifted masks and tree of ORs
; Match a 32-bit packed halfword bswap. That is
; ((x & 0x000000ff) << 8) |
; ((x & 0x0000ff00) >> 8) |
; ((x & 0x00ff0000) << 8) |
; ((x & 0xff000000) >> 8)
; => (rotl (bswap x), 16)
define i32 @test1(i32 %x) nounwind {
; CHECK-LABEL: test1:
[CodeGen] Unify MBB reference format in both MIR and debug output As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 llvm-svn: 319665
2017-12-05 01:18:51 +08:00
; CHECK: # %bb.0:
[DAGCombiner] Improve MatchBswapHword logic (PR31357) The existing code only looks at half of the tree when matching bswap + rol patterns ending in an OR tree (as opposed to a cascade). Patch originally introduced by Jim Lewis. Submitted on the behalf of Dinar Temirbulatov. Differential Revision: https://reviews.llvm.org/D32039 llvm-svn: 301907
2017-05-02 18:16:19 +08:00
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: bswapl %eax
; CHECK-NEXT: roll $16, %eax
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK-NEXT: retl
;
; CHECK64-LABEL: test1:
[CodeGen] Unify MBB reference format in both MIR and debug output As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 llvm-svn: 319665
2017-12-05 01:18:51 +08:00
; CHECK64: # %bb.0:
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK64-NEXT: bswapl %edi
[DAGCombiner] Improve MatchBswapHword logic (PR31357) The existing code only looks at half of the tree when matching bswap + rol patterns ending in an OR tree (as opposed to a cascade). Patch originally introduced by Jim Lewis. Submitted on the behalf of Dinar Temirbulatov. Differential Revision: https://reviews.llvm.org/D32039 llvm-svn: 301907
2017-05-02 18:16:19 +08:00
; CHECK64-NEXT: roll $16, %edi
; CHECK64-NEXT: movl %edi, %eax
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK64-NEXT: retq
%byte0 = and i32 %x, 255 ; 0x000000ff
%byte1 = and i32 %x, 65280 ; 0x0000ff00
%byte2 = and i32 %x, 16711680 ; 0x00ff0000
%byte3 = and i32 %x, 4278190080 ; 0xff000000
%tmp0 = shl i32 %byte0, 8
%tmp1 = lshr i32 %byte1, 8
%tmp2 = shl i32 %byte2, 8
%tmp3 = lshr i32 %byte3, 8
%or0 = or i32 %tmp0, %tmp1
%or1 = or i32 %tmp2, %tmp3
%result = or i32 %or0, %or1
ret i32 %result
}
; the same as test1, just shifts before the "and"
; ((x << 8) & 0x0000ff00) |
; ((x >> 8) & 0x000000ff) |
; ((x << 8) & 0xff000000) |
; ((x >> 8) & 0x00ff0000)
define i32 @test2(i32 %x) nounwind {
; CHECK-LABEL: test2:
[CodeGen] Unify MBB reference format in both MIR and debug output As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 llvm-svn: 319665
2017-12-05 01:18:51 +08:00
; CHECK: # %bb.0:
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
[DAGCombiner] Improve MatchBswapHword logic (PR31357) The existing code only looks at half of the tree when matching bswap + rol patterns ending in an OR tree (as opposed to a cascade). Patch originally introduced by Jim Lewis. Submitted on the behalf of Dinar Temirbulatov. Differential Revision: https://reviews.llvm.org/D32039 llvm-svn: 301907
2017-05-02 18:16:19 +08:00
; CHECK-NEXT: bswapl %eax
; CHECK-NEXT: roll $16, %eax
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK-NEXT: retl
;
; CHECK64-LABEL: test2:
[CodeGen] Unify MBB reference format in both MIR and debug output As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 llvm-svn: 319665
2017-12-05 01:18:51 +08:00
; CHECK64: # %bb.0:
[DAGCombiner] Improve MatchBswapHword logic (PR31357) The existing code only looks at half of the tree when matching bswap + rol patterns ending in an OR tree (as opposed to a cascade). Patch originally introduced by Jim Lewis. Submitted on the behalf of Dinar Temirbulatov. Differential Revision: https://reviews.llvm.org/D32039 llvm-svn: 301907
2017-05-02 18:16:19 +08:00
; CHECK64-NEXT: bswapl %edi
; CHECK64-NEXT: roll $16, %edi
; CHECK64-NEXT: movl %edi, %eax
[X86] Add D32039/PR31357 tests to show current BSWAP codegen llvm-svn: 300672
2017-04-19 19:06:22 +08:00
; CHECK64-NEXT: retq
%byte1 = shl i32 %x, 8
%byte0 = lshr i32 %x, 8
%byte3 = shl i32 %x, 8
%byte2 = lshr i32 %x, 8
%tmp1 = and i32 %byte1, 65280 ; 0x0000ff00
%tmp0 = and i32 %byte0, 255 ; 0x000000ff
%tmp3 = and i32 %byte3, 4278190080 ; 0xff000000
%tmp2 = and i32 %byte2, 16711680 ; 0x00ff0000
%or0 = or i32 %tmp0, %tmp1
%or1 = or i32 %tmp2, %tmp3
%result = or i32 %or0, %or1
ret i32 %result
}