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llvm-project/llvm/test/CodeGen/X86/bswap-rotate.ll

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[DAGCombiner] Fix issue with rotate combines asserting if the constant value types differ from the result type. llvm-svn: 307900
2017-07-13 18:41:49 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=i686 | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
; Combine BSWAP (lowered to rolw 8) with a second rotate.
; This test checks for combining rotates with inconsistent constant value types.
define i16 @combine_bswap_rotate(i16 %a0) {
; X86-LABEL: combine_bswap_rotate:
[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
; X86: # %bb.0:
[DAGCombiner] Fix issue with rotate combines asserting if the constant value types differ from the result type. llvm-svn: 307900
2017-07-13 18:41:49 +08:00
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolw $9, %ax
; X86-NEXT: retl
;
; X64-LABEL: combine_bswap_rotate:
[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
; X64: # %bb.0:
[DAGCombiner] Fix issue with rotate combines asserting if the constant value types differ from the result type. llvm-svn: 307900
2017-07-13 18:41:49 +08:00
; X64-NEXT: movl %edi, %eax
[X86] Handle COPYs of physregs better (regalloc hints) Enable enableMultipleCopyHints() on X86. Original Patch by @jonpa: While enabling the mischeduler for SystemZ, it was discovered that for some reason a test needed one extra seemingly needless COPY (test/CodeGen/SystemZ/call-03.ll). The handling for that is resulted in this patch, which improves the register coalescing by providing not just one copy hint, but a sorted list of copy hints. On SystemZ, this gives ~12500 less register moves on SPEC, as well as marginally less spilling. Instead of improving just the SystemZ backend, the improvement has been implemented in common-code (calculateSpillWeightAndHint(). This gives a lot of test failures, but since this should be a general improvement I hope that the involved targets will help and review the test updates. Differential Revision: https://reviews.llvm.org/D38128 llvm-svn: 342578
2018-09-20 02:59:08 +08:00
; X64-NEXT: rolw $9, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
[DAGCombiner] Fix issue with rotate combines asserting if the constant value types differ from the result type. llvm-svn: 307900
2017-07-13 18:41:49 +08:00
; X64-NEXT: retq
%1 = call i16 @llvm.bswap.i16(i16 %a0)
%2 = shl i16 %1, 1
%3 = lshr i16 %1, 15
%4 = or i16 %2, %3
ret i16 %4
}
declare i16 @llvm.bswap.i16(i16)