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llvm-project/llvm/test/CodeGen/X86/pr29170.ll

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Regen expected tests result. NFC llvm-svn: 294866
2017-02-12 03:27:15 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
[Legalizer] Don't throw away false low half when expanding GT/LT SETCC When expanding a SETCC for which the low half is known to evaluate to false, we can only throw it away for LT/GT comparisons, not LE/GE. This fixes PR29170. Differential Revision: https://reviews.llvm.org/D24151 llvm-svn: 280424
2016-09-02 07:02:32 +08:00
; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
target triple = "i386-unknown-linux-gnu"
@b = global i16 0, align 4
define i32 @main() {
Regen expected tests result. NFC llvm-svn: 294866
2017-02-12 03:27:15 +08:00
; CHECK-LABEL: main:
[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: # %entry
Regen expected tests result. NFC llvm-svn: 294866
2017-02-12 03:27:15 +08:00
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
[BPI] Improve static heuristics for integer comparisons Similarly as for pointers, even for integers a == b is usually false. GCC also uses this heuristic. Reviewed By: ebrevnov Differential Revision: https://reviews.llvm.org/D85781
2020-08-13 18:45:14 +08:00
; CHECK-NEXT: je .LBB0_1
; CHECK-NEXT: .LBB0_3: # %if.else
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: retl
; CHECK-NEXT: .LBB0_1: # %go
Regen expected tests result. NFC llvm-svn: 294866
2017-02-12 03:27:15 +08:00
; CHECK-NEXT: movl $-1, %ecx
; CHECK-NEXT: movsbl b, %edx
; CHECK-NEXT: notl %ecx
; CHECK-NEXT: movzwl %dx, %edx
; CHECK-NEXT: cmpl $-1, %edx
; CHECK-NEXT: sbbl %ecx, %eax
; CHECK-NEXT: jge .LBB0_3
[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-NEXT: # %bb.2: # %if.then
Regen expected tests result. NFC llvm-svn: 294866
2017-02-12 03:27:15 +08:00
; CHECK-NEXT: movl $42, %eax
; CHECK-NEXT: retl
[Legalizer] Don't throw away false low half when expanding GT/LT SETCC When expanding a SETCC for which the low half is known to evaluate to false, we can only throw it away for LT/GT comparisons, not LE/GE. This fixes PR29170. Differential Revision: https://reviews.llvm.org/D24151 llvm-svn: 280424
2016-09-02 07:02:32 +08:00
entry:
%true = icmp eq i32 0, 0
%const = bitcast i64 -4294967296 to i64
br i1 %true, label %go, label %if.else
go:
%b = load i16, i16* @b, align 4
%sext = shl i16 %b, 8
%conv = ashr i16 %sext, 8
%neg4 = xor i64 %const, -1
%conv5 = zext i16 %conv to i64
%cmp = icmp slt i64 %conv5, %neg4
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i32 42
if.else:
ret i32 0
}