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https://github.com/c64scene-ar/llvm-6502.git
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b9ed50cf17
Implements the various TTI functions to enable constant hoisting on PPC. The only significant test-suite change is this: MultiSource/Benchmarks/VersaBench/bmm/bmm - 20% speedup (which essentially reverses the slowdown from r206120). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206141 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
817 B
LLVM
24 lines
817 B
LLVM
; RUN: opt -S -consthoist < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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%T = type { i32, i32, i32, i32 }
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; Test if even cheap base addresses are hoisted.
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define i32 @test1() nounwind {
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; CHECK-LABEL: @test1
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; CHECK: %const = bitcast i32 12345678 to i32
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; CHECK: %1 = inttoptr i32 %const to %T*
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; CHECK: %addr1 = getelementptr %T* %1, i32 0, i32 1
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%addr1 = getelementptr %T* inttoptr (i32 12345678 to %T*), i32 0, i32 1
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%tmp1 = load i32* %addr1
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%addr2 = getelementptr %T* inttoptr (i32 12345678 to %T*), i32 0, i32 2
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%tmp2 = load i32* %addr2
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%addr3 = getelementptr %T* inttoptr (i32 12345678 to %T*), i32 0, i32 3
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%tmp3 = load i32* %addr3
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%tmp4 = add i32 %tmp1, %tmp2
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%tmp5 = add i32 %tmp3, %tmp4
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ret i32 %tmp5
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}
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