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5f6f8101d5
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 llvm-svn: 72897
25 lines
1.3 KiB
LLVM
25 lines
1.3 KiB
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret double .sy}
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define internal double @ScaleObjectAdd(double %sx, double %sy, double %sz) nounwind {
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entry:
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%sx34 = bitcast double %sx to i64 ; <i64> [#uses=1]
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%sx3435 = zext i64 %sx34 to i960 ; <i960> [#uses=1]
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%sy22 = bitcast double %sy to i64 ; <i64> [#uses=1]
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%sy2223 = zext i64 %sy22 to i960 ; <i960> [#uses=1]
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%sy222324 = shl i960 %sy2223, 320 ; <i960> [#uses=1]
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%sy222324.ins = or i960 %sx3435, %sy222324 ; <i960> [#uses=1]
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%sz10 = bitcast double %sz to i64 ; <i64> [#uses=1]
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%sz1011 = zext i64 %sz10 to i960 ; <i960> [#uses=1]
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%sz101112 = shl i960 %sz1011, 640 ; <i960> [#uses=1]
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%sz101112.ins = or i960 %sy222324.ins, %sz101112
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%a = trunc i960 %sz101112.ins to i64 ; <i64> [#uses=1]
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%b = bitcast i64 %a to double ; <double> [#uses=1]
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%c = lshr i960 %sz101112.ins, 320 ; <i960> [#uses=1]
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%d = trunc i960 %c to i64 ; <i64> [#uses=1]
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%e = bitcast i64 %d to double ; <double> [#uses=1]
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%f = fadd double %b, %e
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ret double %e
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}
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