191 lines
6.8 KiB
LLVM
191 lines
6.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=i686-linux-gnu -mattr=-ermsb < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NOFAST32
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; RUN: llc -mtriple=i686-linux-gnu -mattr=+ermsb < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=FAST32
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; RUN: llc -mtriple=x86_64-linux-gnu -mattr=-ermsb < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NOFAST
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; RUN: llc -mtriple=x86_64-linux-gnu -mattr=+ermsb < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=FAST
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; RUN: llc -mtriple=x86_64-linux-gnu -mcpu=generic < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NOFAST
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; RUN: llc -mtriple=x86_64-linux-gnu -mcpu=haswell < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=FAST
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; RUN: llc -mtriple=x86_64-linux-gnu -mcpu=skylake < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=FAST
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; FIXME: The documentation states that ivybridge has ermsb, but this is not
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; enabled right now since I could not confirm by testing.
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; RUN: llc -mtriple=x86_64-linux-gnu -mcpu=ivybridge < %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NOFAST
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%struct.large = type { [4096 x i8] }
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declare void @foo(%struct.large* align 8 byval) nounwind
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define void @test1(%struct.large* nocapture %x) nounwind {
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; NOFAST32-LABEL: test1:
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; NOFAST32: # %bb.0:
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; NOFAST32-NEXT: pushl %edi
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; NOFAST32-NEXT: pushl %esi
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; NOFAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; NOFAST32-NEXT: movl $1024, %ecx # imm = 0x400
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; NOFAST32-NEXT: movl %esp, %edi
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; NOFAST32-NEXT: rep;movsl (%esi), %es:(%edi)
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; NOFAST32-NEXT: calll foo
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; NOFAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: popl %esi
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; NOFAST32-NEXT: popl %edi
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; NOFAST32-NEXT: retl
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;
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; FAST32-LABEL: test1:
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; FAST32: # %bb.0:
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; FAST32-NEXT: pushl %edi
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; FAST32-NEXT: pushl %esi
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; FAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; FAST32-NEXT: movl $4096, %ecx # imm = 0x1000
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; FAST32-NEXT: movl %esp, %edi
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; FAST32-NEXT: rep;movsb (%esi), %es:(%edi)
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; FAST32-NEXT: calll foo
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; FAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: popl %esi
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; FAST32-NEXT: popl %edi
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; FAST32-NEXT: retl
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;
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; NOFAST-LABEL: test1:
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; NOFAST: # %bb.0:
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; NOFAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: movq %rdi, %rsi
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; NOFAST-NEXT: movl $512, %ecx # imm = 0x200
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; NOFAST-NEXT: movq %rsp, %rdi
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; NOFAST-NEXT: rep;movsq (%rsi), %es:(%rdi)
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; NOFAST-NEXT: callq foo
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; NOFAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: retq
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;
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; FAST-LABEL: test1:
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; FAST: # %bb.0:
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; FAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: movq %rdi, %rsi
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; FAST-NEXT: movl $4096, %ecx # imm = 0x1000
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; FAST-NEXT: movq %rsp, %rdi
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; FAST-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; FAST-NEXT: callq foo
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; FAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: retq
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call void @foo(%struct.large* align 8 byval %x)
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ret void
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}
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define void @test2(%struct.large* nocapture %x) nounwind minsize {
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; NOFAST32-LABEL: test2:
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; NOFAST32: # %bb.0:
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; NOFAST32-NEXT: pushl %edi
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; NOFAST32-NEXT: pushl %esi
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; NOFAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; NOFAST32-NEXT: movl $1024, %ecx # imm = 0x400
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; NOFAST32-NEXT: movl %esp, %edi
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; NOFAST32-NEXT: rep;movsl (%esi), %es:(%edi)
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; NOFAST32-NEXT: calll foo
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; NOFAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: popl %esi
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; NOFAST32-NEXT: popl %edi
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; NOFAST32-NEXT: retl
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;
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; FAST32-LABEL: test2:
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; FAST32: # %bb.0:
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; FAST32-NEXT: pushl %edi
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; FAST32-NEXT: pushl %esi
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; FAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; FAST32-NEXT: movl $4096, %ecx # imm = 0x1000
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; FAST32-NEXT: movl %esp, %edi
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; FAST32-NEXT: rep;movsb (%esi), %es:(%edi)
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; FAST32-NEXT: calll foo
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; FAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: popl %esi
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; FAST32-NEXT: popl %edi
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; FAST32-NEXT: retl
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;
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; NOFAST-LABEL: test2:
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; NOFAST: # %bb.0:
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; NOFAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: movq %rdi, %rsi
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; NOFAST-NEXT: movl $512, %ecx # imm = 0x200
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; NOFAST-NEXT: movq %rsp, %rdi
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; NOFAST-NEXT: rep;movsq (%rsi), %es:(%rdi)
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; NOFAST-NEXT: callq foo
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; NOFAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: retq
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;
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; FAST-LABEL: test2:
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; FAST: # %bb.0:
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; FAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: movq %rdi, %rsi
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; FAST-NEXT: movl $4096, %ecx # imm = 0x1000
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; FAST-NEXT: movq %rsp, %rdi
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; FAST-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; FAST-NEXT: callq foo
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; FAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: retq
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call void @foo(%struct.large* align 8 byval %x)
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ret void
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}
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%struct.large_oddsize = type { [4095 x i8] }
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declare void @foo_oddsize(%struct.large_oddsize* align 8 byval) nounwind
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define void @test3(%struct.large_oddsize* nocapture %x) nounwind minsize {
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; NOFAST32-LABEL: test3:
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; NOFAST32: # %bb.0:
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; NOFAST32-NEXT: pushl %edi
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; NOFAST32-NEXT: pushl %esi
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; NOFAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; NOFAST32-NEXT: movl $4095, %ecx # imm = 0xFFF
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; NOFAST32-NEXT: movl %esp, %edi
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; NOFAST32-NEXT: rep;movsb (%esi), %es:(%edi)
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; NOFAST32-NEXT: calll foo_oddsize
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; NOFAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; NOFAST32-NEXT: popl %esi
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; NOFAST32-NEXT: popl %edi
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; NOFAST32-NEXT: retl
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;
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; FAST32-LABEL: test3:
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; FAST32: # %bb.0:
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; FAST32-NEXT: pushl %edi
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; FAST32-NEXT: pushl %esi
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; FAST32-NEXT: subl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: movl {{[0-9]+}}(%esp), %esi
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; FAST32-NEXT: movl $4095, %ecx # imm = 0xFFF
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; FAST32-NEXT: movl %esp, %edi
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; FAST32-NEXT: rep;movsb (%esi), %es:(%edi)
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; FAST32-NEXT: calll foo_oddsize
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; FAST32-NEXT: addl $4100, %esp # imm = 0x1004
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; FAST32-NEXT: popl %esi
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; FAST32-NEXT: popl %edi
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; FAST32-NEXT: retl
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;
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; NOFAST-LABEL: test3:
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; NOFAST: # %bb.0:
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; NOFAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: movq %rdi, %rsi
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; NOFAST-NEXT: movl $4095, %ecx # imm = 0xFFF
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; NOFAST-NEXT: movq %rsp, %rdi
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; NOFAST-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; NOFAST-NEXT: callq foo_oddsize
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; NOFAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; NOFAST-NEXT: retq
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;
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; FAST-LABEL: test3:
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; FAST: # %bb.0:
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; FAST-NEXT: subq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: movq %rdi, %rsi
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; FAST-NEXT: movl $4095, %ecx # imm = 0xFFF
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; FAST-NEXT: movq %rsp, %rdi
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; FAST-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; FAST-NEXT: callq foo_oddsize
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; FAST-NEXT: addq $4104, %rsp # imm = 0x1008
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; FAST-NEXT: retq
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call void @foo_oddsize(%struct.large_oddsize* align 8 byval %x)
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ret void
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}
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