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Summary: Fixes http://llvm.org/bugs/show_bug.cgi?id=20016 reproducible on new lea-5.ll case. Also use RSP/RBP for x32 lea to save 1 byte used for 0x67 prefix in ESP/EBP case. Test Plan: lea tests modified to include x32/nacl and new test added Reviewers: nadav, dschuff, t.p.northover Subscribers: llvm-commits, zinovy.nis Differential Revision: http://reviews.llvm.org/D4929 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216065 91177308-0d34-0410-b5e6-96231b3b80d8
19 lines
627 B
LLVM
19 lines
627 B
LLVM
; RUN: llc < %s -mtriple=i686-linux -x86-asm-syntax=intel | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-linux -x86-asm-syntax=intel | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -x86-asm-syntax=intel | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-nacl -x86-asm-syntax=intel | FileCheck %s
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define i32 @test1(i32 %A, i32 %B) {
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%tmp1 = shl i32 %A, 2
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%tmp3 = add i32 %B, -5
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%tmp4 = add i32 %tmp3, %tmp1
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; The above computation of %tmp4 should match a single lea, without using
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; actual add instructions.
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; CHECK-NOT: add
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; CHECK: lea {{[a-z]+}}, dword ptr [{{[a-z]+}} + 4*{{[a-z]+}} - 5]
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ret i32 %tmp4
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}
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