maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/X86/negate-shift.ll

46 lines
1.2 KiB
LLVM
Raw Normal View History

[x86] regenerate checks with update_llc_test_checks.py The dream of a unified check-line auto-generator for all phases of compilation is dead. The llc script has already diverged to be better at its goal, so having 2 scripts that do almost the same thing is just causing confusion. We can rip out the llc ability in update_test_checks.py next and rename it, so it will be clear that we have one script for llc check auto-generation and another for opt. llvm-svn: 305206
2017-06-13 01:31:36 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
[x86] add tests to show missing folds for negated shifted sign bit llvm-svn: 284238
2016-10-14 22:14:40 +08:00
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
define i32 @neg_lshr_signbit(i32 %x) {
; X64-LABEL: neg_lshr_signbit:
[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:
[DAG] add folds for negated shifted sign bit The same folds exist in InstCombine already. This came up as part of: https://reviews.llvm.org/D25485 llvm-svn: 284239
2016-10-14 22:26:47 +08:00
; X64-NEXT: sarl $31, %edi
[x86] add tests to show missing folds for negated shifted sign bit llvm-svn: 284238
2016-10-14 22:14:40 +08:00
; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%sh = lshr i32 %x, 31
%neg = sub i32 0, %sh
ret i32 %neg
}
define i64 @neg_ashr_signbit(i64 %x) {
; X64-LABEL: neg_ashr_signbit:
[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:
[DAG] add folds for negated shifted sign bit The same folds exist in InstCombine already. This came up as part of: https://reviews.llvm.org/D25485 llvm-svn: 284239
2016-10-14 22:26:47 +08:00
; X64-NEXT: shrq $63, %rdi
[x86] add tests to show missing folds for negated shifted sign bit llvm-svn: 284238
2016-10-14 22:14:40 +08:00
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: retq
%sh = ashr i64 %x, 63
%neg = sub i64 0, %sh
ret i64 %neg
}
define <4 x i32> @neg_ashr_signbit_vec(<4 x i32> %x) {
; X64-LABEL: neg_ashr_signbit_vec:
[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:
[DAG] add folds for negated shifted sign bit The same folds exist in InstCombine already. This came up as part of: https://reviews.llvm.org/D25485 llvm-svn: 284239
2016-10-14 22:26:47 +08:00
; X64-NEXT: psrld $31, %xmm0
[x86] add tests to show missing folds for negated shifted sign bit llvm-svn: 284238
2016-10-14 22:14:40 +08:00
; X64-NEXT: retq
%sh = ashr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%neg = sub <4 x i32> zeroinitializer, %sh
ret <4 x i32> %neg
}
define <8 x i16> @neg_lshr_signbit_vec(<8 x i16> %x) {
; X64-LABEL: neg_lshr_signbit_vec:
[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:
[DAG] add folds for negated shifted sign bit The same folds exist in InstCombine already. This came up as part of: https://reviews.llvm.org/D25485 llvm-svn: 284239
2016-10-14 22:26:47 +08:00
; X64-NEXT: psraw $15, %xmm0
[x86] add tests to show missing folds for negated shifted sign bit llvm-svn: 284238
2016-10-14 22:14:40 +08:00
; X64-NEXT: retq
%sh = lshr <8 x i16> %x, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
%neg = sub <8 x i16> zeroinitializer, %sh
ret <8 x i16> %neg
}