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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
42 lines
1.7 KiB
LLVM
42 lines
1.7 KiB
LLVM
; RUN: llvm-as < %s | opt -simplify-libcalls-halfpowr | llvm-dis | %prcontext {mul float} 1 | grep {mul float} | count 8
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define float @__half_powrf4(float %f, float %g) nounwind readnone {
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entry:
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%0 = fcmp olt float %f, 2.000000e+00 ; <i1> [#uses=1]
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br i1 %0, label %bb, label %bb1
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bb: ; preds = %entry
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%1 = fdiv float %f, 3.000000e+00 ; <float> [#uses=1]
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br label %bb1
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bb1: ; preds = %bb, %entry
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%f_addr.0 = phi float [ %1, %bb ], [ %f, %entry ] ; <float> [#uses=1]
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%2 = fmul float %f_addr.0, %g ; <float> [#uses=1]
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ret float %2
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}
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define void @foo(float* %p) nounwind {
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entry:
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%0 = load float* %p, align 4 ; <float> [#uses=1]
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%1 = getelementptr float* %p, i32 1 ; <float*> [#uses=1]
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%2 = load float* %1, align 4 ; <float> [#uses=1]
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%3 = getelementptr float* %p, i32 2 ; <float*> [#uses=1]
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%4 = load float* %3, align 4 ; <float> [#uses=1]
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%5 = getelementptr float* %p, i32 3 ; <float*> [#uses=1]
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%6 = load float* %5, align 4 ; <float> [#uses=1]
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%7 = getelementptr float* %p, i32 4 ; <float*> [#uses=1]
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%8 = load float* %7, align 4 ; <float> [#uses=1]
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%9 = getelementptr float* %p, i32 5 ; <float*> [#uses=1]
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%10 = load float* %9, align 4 ; <float> [#uses=1]
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%11 = tail call float @__half_powrf4(float %0, float %6) nounwind ; <float> [#uses=1]
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%12 = tail call float @__half_powrf4(float %2, float %8) nounwind ; <float> [#uses=1]
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%13 = tail call float @__half_powrf4(float %4, float %10) nounwind ; <float> [#uses=1]
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%14 = getelementptr float* %p, i32 6 ; <float*> [#uses=1]
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store float %11, float* %14, align 4
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%15 = getelementptr float* %p, i32 7 ; <float*> [#uses=1]
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store float %12, float* %15, align 4
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%16 = getelementptr float* %p, i32 8 ; <float*> [#uses=1]
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store float %13, float* %16, align 4
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ret void
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}
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