mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
834ee28da9
Summary:
This pass sinks COPY instructions into a successor block, if the COPY is not
used in the current block and the COPY is live-in to a single successor
(i.e., doesn't require the COPY to be duplicated). This avoids executing the
the copy on paths where their results aren't needed. This also exposes
additional opportunites for dead copy elimination and shrink wrapping.
These copies were either not handled by or are inserted after the MachineSink
pass. As an example of the former case, the MachineSink pass cannot sink
COPY instructions with allocatable source registers; for AArch64 these type
of copy instructions are frequently used to move function parameters (PhyReg)
into virtual registers in the entry block..
For the machine IR below, this pass will sink %w19 in the entry into its
successor (%bb.1) because %w19 is only live-in in %bb.1.
```
%bb.0:
%wzr = SUBSWri %w1, 1
%w19 = COPY %w0
Bcc 11, %bb.2
%bb.1:
Live Ins: %w19
BL @fun
%w0 = ADDWrr %w0, %w19
RET %w0
%bb.2:
%w0 = COPY %wzr
RET %w0
```
As we sink %w19 (CSR in AArch64) into %bb.1, the shrink-wrapping pass will be
able to see %bb.0 as a candidate.
With this change I observed 12% more shrink-wrapping candidate and 13% more dead copies deleted in spec2000/2006/2017 on AArch64.
Reviewers: qcolombet, MatzeB, thegameg, mcrosier, gberry, hfinkel, john.brawn, twoh, RKSimon, sebpop, kparzysz
Reviewed By: sebpop
Subscribers: evandro, sebpop, sfertile, aemerson, mgorny, javed.absar, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D41463
llvm-svn: 328237
381 lines
14 KiB
LLVM
381 lines
14 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86,X86-NOBMI
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X86,X86-BMI
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64,X64-NOBMI
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X64,X64-BMI
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; PR1198
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define i64 @foo(i64 %x, i64 %y) nounwind {
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; X86-NOBMI-LABEL: foo:
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; X86-NOBMI: # %bb.0:
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; X86-NOBMI-NEXT: pushl %ebp
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; X86-NOBMI-NEXT: pushl %ebx
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; X86-NOBMI-NEXT: pushl %edi
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; X86-NOBMI-NEXT: pushl %esi
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ebp
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NOBMI-NEXT: movl %ecx, %eax
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; X86-NOBMI-NEXT: mull %ebp
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; X86-NOBMI-NEXT: movl %edx, %ebx
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; X86-NOBMI-NEXT: movl %esi, %eax
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; X86-NOBMI-NEXT: mull %ebp
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; X86-NOBMI-NEXT: movl %edx, %ebp
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; X86-NOBMI-NEXT: movl %eax, %esi
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; X86-NOBMI-NEXT: addl %ebx, %esi
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; X86-NOBMI-NEXT: adcl $0, %ebp
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; X86-NOBMI-NEXT: movl %ecx, %eax
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; X86-NOBMI-NEXT: mull %edi
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; X86-NOBMI-NEXT: movl %edx, %ebx
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; X86-NOBMI-NEXT: addl %esi, %eax
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; X86-NOBMI-NEXT: adcl %ebp, %ebx
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; X86-NOBMI-NEXT: setb %al
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; X86-NOBMI-NEXT: movzbl %al, %ecx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: mull %edi
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; X86-NOBMI-NEXT: movl %edx, %esi
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; X86-NOBMI-NEXT: movl %eax, %ebp
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; X86-NOBMI-NEXT: addl %ebx, %ebp
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; X86-NOBMI-NEXT: adcl %ecx, %esi
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; X86-NOBMI-NEXT: xorl %ecx, %ecx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: mull %ecx
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; X86-NOBMI-NEXT: movl %edx, %edi
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; X86-NOBMI-NEXT: movl %eax, %ebx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: mull %ecx
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; X86-NOBMI-NEXT: addl %ebx, %eax
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; X86-NOBMI-NEXT: adcl %edi, %edx
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; X86-NOBMI-NEXT: addl %ebp, %eax
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; X86-NOBMI-NEXT: adcl %esi, %edx
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; X86-NOBMI-NEXT: popl %esi
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; X86-NOBMI-NEXT: popl %edi
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; X86-NOBMI-NEXT: popl %ebx
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; X86-NOBMI-NEXT: popl %ebp
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; X86-NOBMI-NEXT: retl
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;
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; X86-BMI-LABEL: foo:
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; X86-BMI: # %bb.0:
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; X86-BMI-NEXT: pushl %ebp
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; X86-BMI-NEXT: pushl %ebx
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; X86-BMI-NEXT: pushl %edi
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; X86-BMI-NEXT: pushl %esi
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: mulxl %esi, %edx, %ebx
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; X86-BMI-NEXT: movl %eax, %edx
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; X86-BMI-NEXT: mulxl %esi, %ebp, %eax
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; X86-BMI-NEXT: addl %ebx, %ebp
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; X86-BMI-NEXT: adcl $0, %eax
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: mulxl %edi, %edx, %ebx
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; X86-BMI-NEXT: addl %ebp, %edx
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; X86-BMI-NEXT: adcl %eax, %ebx
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; X86-BMI-NEXT: setb %al
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; X86-BMI-NEXT: movzbl %al, %eax
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-BMI-NEXT: mulxl %edi, %edi, %ebp
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; X86-BMI-NEXT: addl %ebx, %edi
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; X86-BMI-NEXT: adcl %eax, %ebp
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; X86-BMI-NEXT: xorl %eax, %eax
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; X86-BMI-NEXT: movl %esi, %edx
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; X86-BMI-NEXT: mulxl %eax, %ebx, %esi
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: mulxl %eax, %eax, %edx
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; X86-BMI-NEXT: addl %ebx, %eax
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; X86-BMI-NEXT: adcl %esi, %edx
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; X86-BMI-NEXT: addl %edi, %eax
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; X86-BMI-NEXT: adcl %ebp, %edx
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; X86-BMI-NEXT: popl %esi
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; X86-BMI-NEXT: popl %edi
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; X86-BMI-NEXT: popl %ebx
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; X86-BMI-NEXT: popl %ebp
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; X86-BMI-NEXT: retl
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;
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; X64-NOBMI-LABEL: foo:
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; X64-NOBMI: # %bb.0:
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; X64-NOBMI-NEXT: movq %rdi, %rax
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; X64-NOBMI-NEXT: mulq %rsi
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; X64-NOBMI-NEXT: movq %rdx, %rax
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; X64-NOBMI-NEXT: retq
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;
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; X64-BMI-LABEL: foo:
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; X64-BMI: # %bb.0:
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; X64-BMI-NEXT: movq %rdi, %rdx
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; X64-BMI-NEXT: mulxq %rsi, %rcx, %rax
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; X64-BMI-NEXT: retq
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%tmp0 = zext i64 %x to i128
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%tmp1 = zext i64 %y to i128
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%tmp2 = mul i128 %tmp0, %tmp1
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%tmp7 = zext i32 64 to i128
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%tmp3 = lshr i128 %tmp2, %tmp7
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%tmp4 = trunc i128 %tmp3 to i64
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ret i64 %tmp4
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}
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; <rdar://problem/14096009> superfluous multiply by high part of
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; zero-extended value.
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define i64 @mul1(i64 %n, i64* nocapture %z, i64* nocapture %x, i64 %y) nounwind {
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; X86-NOBMI-LABEL: mul1:
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; X86-NOBMI: # %bb.0: # %entry
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; X86-NOBMI-NEXT: pushl %ebp
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; X86-NOBMI-NEXT: pushl %ebx
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; X86-NOBMI-NEXT: pushl %edi
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; X86-NOBMI-NEXT: pushl %esi
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; X86-NOBMI-NEXT: subl $28, %esp
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: orl %ecx, %eax
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; X86-NOBMI-NEXT: je .LBB1_3
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; X86-NOBMI-NEXT: # %bb.1: # %for.body.preheader
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; X86-NOBMI-NEXT: xorl %eax, %eax
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; X86-NOBMI-NEXT: xorl %edx, %edx
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; X86-NOBMI-NEXT: xorl %ebx, %ebx
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; X86-NOBMI-NEXT: movl $0, {{[0-9]+}}(%esp) # 4-byte Folded Spill
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; X86-NOBMI-NEXT: .p2align 4, 0x90
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; X86-NOBMI-NEXT: .LBB1_2: # %for.body
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; X86-NOBMI-NEXT: # =>This Inner Loop Header: Depth=1
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; X86-NOBMI-NEXT: movl %edx, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: movl %eax, %ecx
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; X86-NOBMI-NEXT: movl (%eax,%ebx,8), %ebp
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; X86-NOBMI-NEXT: movl 4(%eax,%ebx,8), %esi
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; X86-NOBMI-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl %ebp, %eax
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; X86-NOBMI-NEXT: movl %ebp, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOBMI-NEXT: mull %ecx
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; X86-NOBMI-NEXT: movl %edx, %edi
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; X86-NOBMI-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl %esi, %eax
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; X86-NOBMI-NEXT: mull %ecx
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; X86-NOBMI-NEXT: movl %edx, %ecx
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; X86-NOBMI-NEXT: movl %eax, %esi
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; X86-NOBMI-NEXT: addl %edi, %esi
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; X86-NOBMI-NEXT: adcl $0, %ecx
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; X86-NOBMI-NEXT: movl %ebp, %eax
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NOBMI-NEXT: mull %edx
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; X86-NOBMI-NEXT: movl %edx, %ebp
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; X86-NOBMI-NEXT: movl %eax, %edi
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; X86-NOBMI-NEXT: addl %esi, %edi
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; X86-NOBMI-NEXT: adcl %ecx, %ebp
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; X86-NOBMI-NEXT: setb {{[0-9]+}}(%esp) # 1-byte Folded Spill
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
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; X86-NOBMI-NEXT: mull {{[0-9]+}}(%esp)
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; X86-NOBMI-NEXT: movl %edx, %ecx
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; X86-NOBMI-NEXT: movl %eax, %esi
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; X86-NOBMI-NEXT: addl %ebp, %esi
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; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %eax # 1-byte Folded Reload
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; X86-NOBMI-NEXT: adcl %eax, %ecx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI-NEXT: xorl %edx, %edx
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; X86-NOBMI-NEXT: mull %edx
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; X86-NOBMI-NEXT: movl %edx, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: movl %eax, %ebp
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
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; X86-NOBMI-NEXT: xorl %edx, %edx
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; X86-NOBMI-NEXT: mull %edx
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; X86-NOBMI-NEXT: addl %ebp, %eax
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ebp
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; X86-NOBMI-NEXT: adcl {{[0-9]+}}(%esp), %edx # 4-byte Folded Reload
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; X86-NOBMI-NEXT: addl %esi, %eax
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; X86-NOBMI-NEXT: adcl %ecx, %edx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi # 4-byte Reload
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; X86-NOBMI-NEXT: addl {{[0-9]+}}(%esp), %esi # 4-byte Folded Reload
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; X86-NOBMI-NEXT: adcl {{[0-9]+}}(%esp), %edi # 4-byte Folded Reload
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; X86-NOBMI-NEXT: adcl $0, %eax
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; X86-NOBMI-NEXT: adcl $0, %edx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOBMI-NEXT: movl %esi, (%ecx,%ebx,8)
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; X86-NOBMI-NEXT: movl %edi, 4(%ecx,%ebx,8)
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NOBMI-NEXT: movl %ecx, %edi
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; X86-NOBMI-NEXT: addl $1, %ebx
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; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi # 4-byte Reload
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; X86-NOBMI-NEXT: adcl $0, %esi
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; X86-NOBMI-NEXT: movl %ebx, %ecx
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; X86-NOBMI-NEXT: xorl %ebp, %ecx
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; X86-NOBMI-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-NOBMI-NEXT: xorl %edi, %esi
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; X86-NOBMI-NEXT: orl %ecx, %esi
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; X86-NOBMI-NEXT: jne .LBB1_2
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; X86-NOBMI-NEXT: .LBB1_3: # %for.end
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; X86-NOBMI-NEXT: xorl %eax, %eax
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; X86-NOBMI-NEXT: xorl %edx, %edx
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; X86-NOBMI-NEXT: addl $28, %esp
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; X86-NOBMI-NEXT: popl %esi
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; X86-NOBMI-NEXT: popl %edi
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; X86-NOBMI-NEXT: popl %ebx
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; X86-NOBMI-NEXT: popl %ebp
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; X86-NOBMI-NEXT: retl
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;
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; X86-BMI-LABEL: mul1:
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; X86-BMI: # %bb.0: # %entry
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; X86-BMI-NEXT: pushl %ebp
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; X86-BMI-NEXT: pushl %ebx
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; X86-BMI-NEXT: pushl %edi
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; X86-BMI-NEXT: pushl %esi
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; X86-BMI-NEXT: subl $20, %esp
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: orl %ecx, %eax
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; X86-BMI-NEXT: je .LBB1_3
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; X86-BMI-NEXT: # %bb.1: # %for.body.preheader
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; X86-BMI-NEXT: xorl %ecx, %ecx
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; X86-BMI-NEXT: xorl %edx, %edx
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; X86-BMI-NEXT: xorl %edi, %edi
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; X86-BMI-NEXT: movl $0, {{[0-9]+}}(%esp) # 4-byte Folded Spill
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; X86-BMI-NEXT: .p2align 4, 0x90
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; X86-BMI-NEXT: .LBB1_2: # %for.body
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; X86-BMI-NEXT: # =>This Inner Loop Header: Depth=1
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; X86-BMI-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-BMI-NEXT: movl %edx, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: movl (%eax,%edi,8), %ecx
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; X86-BMI-NEXT: movl 4(%eax,%edi,8), %ebx
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; X86-BMI-NEXT: movl %ebx, (%esp) # 4-byte Spill
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: movl %eax, %esi
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; X86-BMI-NEXT: mulxl %eax, %eax, %ebp
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; X86-BMI-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; X86-BMI-NEXT: movl %ebx, %edx
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; X86-BMI-NEXT: mulxl %esi, %eax, %esi
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; X86-BMI-NEXT: addl %ebp, %eax
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; X86-BMI-NEXT: adcl $0, %esi
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: mulxl {{[0-9]+}}(%esp), %ebp, %ebx
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; X86-BMI-NEXT: addl %eax, %ebp
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; X86-BMI-NEXT: adcl %esi, %ebx
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; X86-BMI-NEXT: movl (%esp), %edx # 4-byte Reload
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; X86-BMI-NEXT: mulxl {{[0-9]+}}(%esp), %eax, %esi
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; X86-BMI-NEXT: setb %dl
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; X86-BMI-NEXT: addl %ebx, %eax
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; X86-BMI-NEXT: movzbl %dl, %edx
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; X86-BMI-NEXT: adcl %edx, %esi
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-BMI-NEXT: xorl %ebx, %ebx
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; X86-BMI-NEXT: mulxl %ebx, %ebx, %edx
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; X86-BMI-NEXT: movl %edx, (%esp) # 4-byte Spill
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; X86-BMI-NEXT: movl %ecx, %edx
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; X86-BMI-NEXT: xorl %ecx, %ecx
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; X86-BMI-NEXT: mulxl %ecx, %ecx, %edx
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; X86-BMI-NEXT: addl %ebx, %ecx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %ebx
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; X86-BMI-NEXT: adcl (%esp), %edx # 4-byte Folded Reload
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; X86-BMI-NEXT: addl %eax, %ecx
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; X86-BMI-NEXT: adcl %esi, %edx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %esi # 4-byte Reload
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; X86-BMI-NEXT: addl {{[0-9]+}}(%esp), %esi # 4-byte Folded Reload
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; X86-BMI-NEXT: adcl {{[0-9]+}}(%esp), %ebp # 4-byte Folded Reload
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; X86-BMI-NEXT: adcl $0, %ecx
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; X86-BMI-NEXT: adcl $0, %edx
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: movl %esi, (%eax,%edi,8)
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; X86-BMI-NEXT: movl %ebp, 4(%eax,%edi,8)
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-BMI-NEXT: movl %eax, %esi
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; X86-BMI-NEXT: addl $1, %edi
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; X86-BMI-NEXT: movl {{[0-9]+}}(%esp), %ebp # 4-byte Reload
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; X86-BMI-NEXT: adcl $0, %ebp
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; X86-BMI-NEXT: movl %edi, %eax
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; X86-BMI-NEXT: xorl %esi, %eax
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; X86-BMI-NEXT: movl %ebp, {{[0-9]+}}(%esp) # 4-byte Spill
|
|
; X86-BMI-NEXT: movl %ebp, %esi
|
|
; X86-BMI-NEXT: xorl %ebx, %esi
|
|
; X86-BMI-NEXT: orl %eax, %esi
|
|
; X86-BMI-NEXT: jne .LBB1_2
|
|
; X86-BMI-NEXT: .LBB1_3: # %for.end
|
|
; X86-BMI-NEXT: xorl %eax, %eax
|
|
; X86-BMI-NEXT: xorl %edx, %edx
|
|
; X86-BMI-NEXT: addl $20, %esp
|
|
; X86-BMI-NEXT: popl %esi
|
|
; X86-BMI-NEXT: popl %edi
|
|
; X86-BMI-NEXT: popl %ebx
|
|
; X86-BMI-NEXT: popl %ebp
|
|
; X86-BMI-NEXT: retl
|
|
;
|
|
; X64-NOBMI-LABEL: mul1:
|
|
; X64-NOBMI: # %bb.0: # %entry
|
|
; X64-NOBMI-NEXT: testq %rdi, %rdi
|
|
; X64-NOBMI-NEXT: je .LBB1_3
|
|
; X64-NOBMI-NEXT: # %bb.1: # %for.body.preheader
|
|
; X64-NOBMI-NEXT: movq %rcx, %r8
|
|
; X64-NOBMI-NEXT: movq %rdx, %r9
|
|
; X64-NOBMI-NEXT: xorl %r10d, %r10d
|
|
; X64-NOBMI-NEXT: xorl %ecx, %ecx
|
|
; X64-NOBMI-NEXT: .p2align 4, 0x90
|
|
; X64-NOBMI-NEXT: .LBB1_2: # %for.body
|
|
; X64-NOBMI-NEXT: # =>This Inner Loop Header: Depth=1
|
|
; X64-NOBMI-NEXT: movq %r8, %rax
|
|
; X64-NOBMI-NEXT: mulq (%r9,%rcx,8)
|
|
; X64-NOBMI-NEXT: addq %r10, %rax
|
|
; X64-NOBMI-NEXT: adcq $0, %rdx
|
|
; X64-NOBMI-NEXT: movq %rax, (%rsi,%rcx,8)
|
|
; X64-NOBMI-NEXT: incq %rcx
|
|
; X64-NOBMI-NEXT: cmpq %rcx, %rdi
|
|
; X64-NOBMI-NEXT: movq %rdx, %r10
|
|
; X64-NOBMI-NEXT: jne .LBB1_2
|
|
; X64-NOBMI-NEXT: .LBB1_3: # %for.end
|
|
; X64-NOBMI-NEXT: xorl %eax, %eax
|
|
; X64-NOBMI-NEXT: retq
|
|
;
|
|
; X64-BMI-LABEL: mul1:
|
|
; X64-BMI: # %bb.0: # %entry
|
|
; X64-BMI-NEXT: testq %rdi, %rdi
|
|
; X64-BMI-NEXT: je .LBB1_3
|
|
; X64-BMI-NEXT: # %bb.1: # %for.body.preheader
|
|
; X64-BMI-NEXT: movq %rcx, %r8
|
|
; X64-BMI-NEXT: movq %rdx, %r9
|
|
; X64-BMI-NEXT: xorl %r10d, %r10d
|
|
; X64-BMI-NEXT: xorl %eax, %eax
|
|
; X64-BMI-NEXT: .p2align 4, 0x90
|
|
; X64-BMI-NEXT: .LBB1_2: # %for.body
|
|
; X64-BMI-NEXT: # =>This Inner Loop Header: Depth=1
|
|
; X64-BMI-NEXT: movq %r8, %rdx
|
|
; X64-BMI-NEXT: mulxq (%r9,%rax,8), %rcx, %rdx
|
|
; X64-BMI-NEXT: addq %r10, %rcx
|
|
; X64-BMI-NEXT: adcq $0, %rdx
|
|
; X64-BMI-NEXT: movq %rcx, (%rsi,%rax,8)
|
|
; X64-BMI-NEXT: incq %rax
|
|
; X64-BMI-NEXT: cmpq %rax, %rdi
|
|
; X64-BMI-NEXT: movq %rdx, %r10
|
|
; X64-BMI-NEXT: jne .LBB1_2
|
|
; X64-BMI-NEXT: .LBB1_3: # %for.end
|
|
; X64-BMI-NEXT: xorl %eax, %eax
|
|
; X64-BMI-NEXT: retq
|
|
entry:
|
|
%conv = zext i64 %y to i128
|
|
%cmp11 = icmp eq i64 %n, 0
|
|
br i1 %cmp11, label %for.end, label %for.body
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%carry.013 = phi i64 [ %conv6, %for.body ], [ 0, %entry ]
|
|
%i.012 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds i64, i64* %x, i64 %i.012
|
|
%0 = load i64, i64* %arrayidx, align 8
|
|
%conv2 = zext i64 %0 to i128
|
|
%mul = mul i128 %conv2, %conv
|
|
%conv3 = zext i64 %carry.013 to i128
|
|
%add = add i128 %mul, %conv3
|
|
%conv4 = trunc i128 %add to i64
|
|
%arrayidx5 = getelementptr inbounds i64, i64* %z, i64 %i.012
|
|
store i64 %conv4, i64* %arrayidx5, align 8
|
|
%shr = lshr i128 %add, 64
|
|
%conv6 = trunc i128 %shr to i64
|
|
%inc = add i64 %i.012, 1
|
|
%exitcond = icmp eq i64 %inc, %n
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body, %entry
|
|
ret i64 0
|
|
}
|