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63d8953449
Summary: Knights Landing, because it is Atom derived, has slow two memory operand instructions. Mark the Knights Landing CPU model accordingly. Patch by David Zarzycki. Reviewers: craig.topper Reviewed By: craig.topper Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D37224 llvm-svn: 311979
41 lines
1.1 KiB
LLVM
41 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=i686-windows | FileCheck %s -check-prefix=CHECK -check-prefix=NORMAL
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; RUN: llc < %s -mtriple=i686-windows -mattr=slow-two-mem-ops | FileCheck %s -check-prefix=CHECK -check-prefix=SLM
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declare void @foo(i32 %r)
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define void @test(i32 %a, i32 %b) optsize nounwind {
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; CHECK-LABEL: test:
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; CHECK: movl [[EAX:%e..]], (%esp)
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; CHECK-NEXT: pushl [[EAX]]
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; CHECK-NEXT: calll
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; CHECK-NEXT: addl $4, %esp
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; CHECK: nop
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; NORMAL: pushl (%esp)
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; SLM: movl (%esp), [[RELOAD:%e..]]
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; SLM-NEXT: pushl [[RELOAD]]
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; CHECK: calll
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; CHECK-NEXT: addl $8, %esp
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%c = add i32 %a, %b
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call void @foo(i32 %c)
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call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di}"()
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call void @foo(i32 %c)
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ret void
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}
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define void @test_min(i32 %a, i32 %b) minsize nounwind {
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; CHECK-LABEL: test_min:
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; CHECK: movl [[EAX:%e..]], (%esp)
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; CHECK-NEXT: pushl [[EAX]]
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; CHECK-NEXT: calll
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; CHECK-NEXT: popl
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; CHECK: nop
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; CHECK: pushl (%esp)
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; CHECK: calll
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; CHECK-NEXT: popl
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%c = add i32 %a, %b
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call void @foo(i32 %c)
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call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di}"()
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call void @foo(i32 %c)
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ret void
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}
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