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https://github.com/c64scene-ar/llvm-6502.git
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ae3a0be92e
integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.1 KiB
LLVM
50 lines
1.1 KiB
LLVM
; This test makes sure that these instructions are properly constant propagated.
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; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep load
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; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep add
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; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep phi
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@Y = constant [2 x { i212, float }] [ { i212, float } { i212 12, float 1.0 },
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{ i212, float } { i212 37, float 2.0 } ]
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define internal float @test2() {
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%A = getelementptr [2 x { i212, float}]* @Y, i32 0, i32 1, i32 1
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%B = load float* %A
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ret float %B
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}
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define internal float @test3() {
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%A = getelementptr [2 x { i212, float}]* @Y, i32 0, i32 0, i32 1
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%B = load float* %A
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ret float %B
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}
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define internal float @test()
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{
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%A = call float @test2()
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%B = call float @test3()
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%E = fdiv float %B, %A
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ret float %E
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}
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define float @All()
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{
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%A = call float @test()
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%B = fcmp oge float %A, 1.0
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br i1 %B, label %T, label %F
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T:
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%C = fadd float %A, 1.0
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br label %exit
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F:
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%D = fadd float %A, 2.0
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br label %exit
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exit:
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%E = phi float [%C, %T], [%D, %F]
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ret float %E
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}
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