mirror of
https://github.com/c64scene-ar/llvm-6502.git
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36a0947820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.9 KiB
LLVM
48 lines
1.9 KiB
LLVM
; RUN: llc < %s -march=x86-64 > %t
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; RUN: grep mov %t | count 8
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; RUN: not grep implicit %t
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; Avoid partial register updates; don't define an i8 register and read
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; the i32 super-register.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-apple-darwin9.6"
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%struct.RC4_KEY = type { i8, i8, [256 x i8] }
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define void @foo(%struct.RC4_KEY* nocapture %key, i64 %len, i8* %indata, i8* %outdata) nounwind {
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entry:
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br label %bb24
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bb24: ; preds = %bb24, %entry
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%0 = load i8* null, align 1 ; <i8> [#uses=1]
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%1 = zext i8 %0 to i64 ; <i64> [#uses=1]
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%2 = shl i64 %1, 32 ; <i64> [#uses=1]
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%3 = getelementptr %struct.RC4_KEY* %key, i64 0, i32 2, i64 0 ; <i8*> [#uses=1]
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%4 = load i8* %3, align 1 ; <i8> [#uses=2]
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%5 = add i8 %4, 0 ; <i8> [#uses=2]
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%6 = zext i8 %5 to i64 ; <i64> [#uses=0]
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%7 = load i8* null, align 1 ; <i8> [#uses=1]
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%8 = zext i8 %4 to i32 ; <i32> [#uses=1]
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%9 = zext i8 %7 to i32 ; <i32> [#uses=1]
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%10 = add i32 %9, %8 ; <i32> [#uses=1]
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%11 = and i32 %10, 255 ; <i32> [#uses=1]
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%12 = zext i32 %11 to i64 ; <i64> [#uses=1]
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%13 = getelementptr %struct.RC4_KEY* %key, i64 0, i32 2, i64 %12 ; <i8*> [#uses=1]
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%14 = load i8* %13, align 1 ; <i8> [#uses=1]
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%15 = zext i8 %14 to i64 ; <i64> [#uses=1]
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%16 = shl i64 %15, 48 ; <i64> [#uses=1]
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%17 = getelementptr %struct.RC4_KEY* %key, i64 0, i32 2, i64 0 ; <i8*> [#uses=1]
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%18 = load i8* %17, align 1 ; <i8> [#uses=2]
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%19 = add i8 %18, %5 ; <i8> [#uses=1]
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%20 = zext i8 %19 to i64 ; <i64> [#uses=1]
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%21 = getelementptr %struct.RC4_KEY* %key, i64 0, i32 2, i64 %20 ; <i8*> [#uses=1]
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store i8 %18, i8* %21, align 1
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%22 = or i64 0, %2 ; <i64> [#uses=1]
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%23 = or i64 %22, 0 ; <i64> [#uses=1]
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%24 = or i64 %23, %16 ; <i64> [#uses=1]
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%25 = or i64 %24, 0 ; <i64> [#uses=1]
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%26 = xor i64 %25, 0 ; <i64> [#uses=1]
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store i64 %26, i64* null, align 8
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br label %bb24
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}
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