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Fixes removal of dead elements from PressureDiff (PR37252).

Browse Source 
Reviewed By: MatzeB

Differential Revision: https://reviews.llvm.org/D51495

llvm-svn: 342457
This commit is contained in:
Yury Gribov 2018-09-18 09:53:42 +00:00
parent 4fe2509252
commit 2c6a4f8f98
4 changed files with 16 additions and 17 deletions
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3
lib/CodeGen/RegisterPressure.cpp
View File

@ -681,8 +681,7 @@ void PressureDiff::addPressureChange(unsigned RegUnit, bool IsDec,
PressureDiff::iterator J;
for (J = std::next(I); J != E && J->isValid(); ++J, ++I)
*I = *J;
if (J != E)
*I = *J;
*I = PressureChange();
}
}
}

4
test/CodeGen/X86/GlobalISel/gep.ll
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@ -6,12 +6,12 @@ define i32* @test_gep_i8(i32 *%arr, i8 %ind) {
; X64_GISEL-LABEL: test_gep_i8:
; X64_GISEL: # %bb.0:
; X64_GISEL-NEXT: # kill: def $esi killed $esi def $rsi
; X64_GISEL-NEXT: movq $4, %rax
; X64_GISEL-NEXT: movq $56, %rcx
; X64_GISEL-NEXT: # kill: def $cl killed $rcx
; X64_GISEL-NEXT: shlq %cl, %rsi
; X64_GISEL-NEXT: movq $56, %rcx
; X64_GISEL-NEXT: # kill: def $cl killed $rcx
; X64_GISEL-NEXT: movq $4, %rax
; X64_GISEL-NEXT: sarq %cl, %rsi
; X64_GISEL-NEXT: imulq %rax, %rsi
; X64_GISEL-NEXT: leaq (%rdi,%rsi), %rax
@ -46,12 +46,12 @@ define i32* @test_gep_i16(i32 *%arr, i16 %ind) {
; X64_GISEL-LABEL: test_gep_i16:
; X64_GISEL: # %bb.0:
; X64_GISEL-NEXT: # kill: def $esi killed $esi def $rsi
; X64_GISEL-NEXT: movq $4, %rax
; X64_GISEL-NEXT: movq $48, %rcx
; X64_GISEL-NEXT: # kill: def $cl killed $rcx
; X64_GISEL-NEXT: shlq %cl, %rsi
; X64_GISEL-NEXT: movq $48, %rcx
; X64_GISEL-NEXT: # kill: def $cl killed $rcx
; X64_GISEL-NEXT: movq $4, %rax
; X64_GISEL-NEXT: sarq %cl, %rsi
; X64_GISEL-NEXT: imulq %rax, %rsi
; X64_GISEL-NEXT: leaq (%rdi,%rsi), %rax

24
test/CodeGen/X86/divrem.ll
View File

@ -57,11 +57,11 @@ define void @si32(i32 %x, i32 %y, i32* %p, i32* %q) nounwind {
; X32-LABEL: si32:
; X32: # %bb.0:
; X32-NEXT: pushl %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: cltd
; X32-NEXT: idivl {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movl %eax, (%esi)
; X32-NEXT: movl %edx, (%ecx)
; X32-NEXT: popl %esi
@ -87,11 +87,11 @@ define void @si16(i16 %x, i16 %y, i16* %p, i16* %q) nounwind {
; X32-LABEL: si16:
; X32: # %bb.0:
; X32-NEXT: pushl %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X32-NEXT: cwtd
; X32-NEXT: idivw {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movw %ax, (%esi)
; X32-NEXT: movw %dx, (%ecx)
; X32-NEXT: popl %esi
@ -117,11 +117,11 @@ define void @si8(i8 %x, i8 %y, i8* %p, i8* %q) nounwind {
; X32-LABEL: si8:
; X32: # %bb.0:
; X32-NEXT: pushl %ebx
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %edx
; X32-NEXT: movb {{[0-9]+}}(%esp), %al
; X32-NEXT: cbtw
; X32-NEXT: idivb {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %edx
; X32-NEXT: movsbl %ah, %ebx
; X32-NEXT: movb %al, (%edx)
; X32-NEXT: movb %bl, (%ecx)
@ -199,11 +199,11 @@ define void @ui32(i32 %x, i32 %y, i32* %p, i32* %q) nounwind {
; X32-LABEL: ui32:
; X32: # %bb.0:
; X32-NEXT: pushl %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: xorl %edx, %edx
; X32-NEXT: divl {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movl %eax, (%esi)
; X32-NEXT: movl %edx, (%ecx)
; X32-NEXT: popl %esi
@ -229,11 +229,11 @@ define void @ui16(i16 %x, i16 %y, i16* %p, i16* %q) nounwind {
; X32-LABEL: ui16:
; X32: # %bb.0:
; X32-NEXT: pushl %esi
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X32-NEXT: xorl %edx, %edx
; X32-NEXT: divw {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %esi
; X32-NEXT: movw %ax, (%esi)
; X32-NEXT: movw %dx, (%ecx)
; X32-NEXT: popl %esi
@ -259,11 +259,11 @@ define void @ui8(i8 %x, i8 %y, i8* %p, i8* %q) nounwind {
; X32-LABEL: ui8:
; X32: # %bb.0:
; X32-NEXT: pushl %ebx
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %edx
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: # kill: def $eax killed $eax def $ax
; X32-NEXT: divb {{[0-9]+}}(%esp)
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movl {{[0-9]+}}(%esp), %edx
; X32-NEXT: movzbl %ah, %ebx
; X32-NEXT: movb %al, (%edx)
; X32-NEXT: movb %bl, (%ecx)

2
test/CodeGen/X86/divrem8_ext.ll
View File

@ -150,8 +150,8 @@ define i8 @test_srem_noext_ah(i8 %x, i8 %y) {
; X32-LABEL: test_srem_noext_ah:
; X32: # %bb.0:
; X32-NEXT: movb {{[0-9]+}}(%esp), %al
; X32-NEXT: movb {{[0-9]+}}(%esp), %cl
; X32-NEXT: cbtw
; X32-NEXT: movb {{[0-9]+}}(%esp), %cl
; X32-NEXT: idivb %cl
; X32-NEXT: movsbl %ah, %eax
; X32-NEXT: addb %cl, %al