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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
38 lines
1.6 KiB
LLVM
38 lines
1.6 KiB
LLVM
; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin -mattr=+sse2 | not grep {.space}
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; rdar://6668548
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declare double @llvm.sqrt.f64(double) nounwind readonly
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declare double @fabs(double)
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declare double @llvm.pow.f64(double, double) nounwind readonly
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define void @SolveCubic_bb1(i32* %solutions, double* %x, x86_fp80 %.reload, x86_fp80 %.reload5, x86_fp80 %.reload6, double %.reload8) nounwind {
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newFuncRoot:
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br label %bb1
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bb1.ret.exitStub: ; preds = %bb1
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ret void
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bb1: ; preds = %newFuncRoot
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store i32 1, i32* %solutions, align 4
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%0 = tail call double @llvm.sqrt.f64(double %.reload8) ; <double> [#uses=1]
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%1 = fptrunc x86_fp80 %.reload6 to double ; <double> [#uses=1]
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%2 = tail call double @fabs(double %1) nounwind readnone ; <double> [#uses=1]
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%3 = fadd double %0, %2 ; <double> [#uses=1]
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%4 = tail call double @llvm.pow.f64(double %3, double 0x3FD5555555555555) ; <double> [#uses=1]
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%5 = fpext double %4 to x86_fp80 ; <x86_fp80> [#uses=2]
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%6 = fdiv x86_fp80 %.reload5, %5 ; <x86_fp80> [#uses=1]
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%7 = fadd x86_fp80 %5, %6 ; <x86_fp80> [#uses=1]
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%8 = fptrunc x86_fp80 %7 to double ; <double> [#uses=1]
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%9 = fcmp olt x86_fp80 %.reload6, 0xK00000000000000000000 ; <i1> [#uses=1]
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%iftmp.6.0 = select i1 %9, double 1.000000e+00, double -1.000000e+00 ; <double> [#uses=1]
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%10 = fmul double %8, %iftmp.6.0 ; <double> [#uses=1]
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%11 = fpext double %10 to x86_fp80 ; <x86_fp80> [#uses=1]
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%12 = fdiv x86_fp80 %.reload, 0xKC000C000000000000000 ; <x86_fp80> [#uses=1]
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%13 = fadd x86_fp80 %11, %12 ; <x86_fp80> [#uses=1]
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%14 = fptrunc x86_fp80 %13 to double ; <double> [#uses=1]
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store double %14, double* %x, align 1
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br label %bb1.ret.exitStub
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}
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