mirror of
https://github.com/c64scene-ar/llvm-6502.git
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93 lines
3.1 KiB
LLVM
93 lines
3.1 KiB
LLVM
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; RUN: llvm-as < %s | opt -inline | llvm-dis | grep {call.*fib} | count 4
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; First call to fib from fib is inlined, producing 2 instead of 1, total 3.
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; Second call to fib from fib is not inlined because new body of fib exceeds
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; inlining limit of 200. Plus call in main = 4 total.
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; ModuleID = '<stdin>'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin9.6"
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@"\01LC" = internal constant [5 x i8] c"%ld\0A\00" ; <[5 x i8]*> [#uses=1]
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define i32 @fib(i32 %n) nounwind {
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entry:
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%n_addr = alloca i32 ; <i32*> [#uses=4]
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%retval = alloca i32 ; <i32*> [#uses=2]
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%0 = alloca i32 ; <i32*> [#uses=3]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i32 %n, i32* %n_addr
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%1 = load i32* %n_addr, align 4 ; <i32> [#uses=1]
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%2 = icmp ule i32 %1, 1 ; <i1> [#uses=1]
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br i1 %2, label %bb, label %bb1
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bb: ; preds = %entry
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store i32 1, i32* %0, align 4
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br label %bb2
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bb1: ; preds = %entry
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%3 = load i32* %n_addr, align 4 ; <i32> [#uses=1]
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%4 = sub i32 %3, 2 ; <i32> [#uses=1]
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%5 = call i32 @fib(i32 %4) nounwind ; <i32> [#uses=1]
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%6 = load i32* %n_addr, align 4 ; <i32> [#uses=1]
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%7 = sub i32 %6, 1 ; <i32> [#uses=1]
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%8 = call i32 @fib(i32 %7) nounwind ; <i32> [#uses=1]
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%9 = add i32 %5, %8 ; <i32> [#uses=1]
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store i32 %9, i32* %0, align 4
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br label %bb2
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bb2: ; preds = %bb1, %bb
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%10 = load i32* %0, align 4 ; <i32> [#uses=1]
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store i32 %10, i32* %retval, align 4
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br label %return
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return: ; preds = %bb2
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%retval3 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval3
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}
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define i32 @main(i32 %argc, i8** %argv) nounwind {
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entry:
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%argc_addr = alloca i32 ; <i32*> [#uses=2]
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%argv_addr = alloca i8** ; <i8***> [#uses=2]
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%retval = alloca i32 ; <i32*> [#uses=2]
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%N = alloca i32 ; <i32*> [#uses=2]
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%0 = alloca i32 ; <i32*> [#uses=2]
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%iftmp.0 = alloca i32 ; <i32*> [#uses=3]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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store i32 %argc, i32* %argc_addr
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store i8** %argv, i8*** %argv_addr
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%1 = load i32* %argc_addr, align 4 ; <i32> [#uses=1]
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%2 = icmp eq i32 %1, 2 ; <i1> [#uses=1]
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br i1 %2, label %bb, label %bb1
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bb: ; preds = %entry
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%3 = load i8*** %argv_addr, align 4 ; <i8**> [#uses=1]
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%4 = getelementptr i8** %3, i32 1 ; <i8**> [#uses=1]
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%5 = load i8** %4, align 4 ; <i8*> [#uses=1]
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%6 = call i32 @atoi(i8* %5) nounwind ; <i32> [#uses=1]
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store i32 %6, i32* %iftmp.0, align 4
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br label %bb2
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bb1: ; preds = %entry
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store i32 43, i32* %iftmp.0, align 4
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br label %bb2
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bb2: ; preds = %bb1, %bb
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%7 = load i32* %iftmp.0, align 4 ; <i32> [#uses=1]
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store i32 %7, i32* %N, align 4
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%8 = load i32* %N, align 4 ; <i32> [#uses=1]
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%9 = call i32 @fib(i32 %8) nounwind ; <i32> [#uses=1]
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%10 = call i32 (i8*, ...)* @printf(i8* getelementptr ([5 x i8]* @"\01LC", i32 0, i32 0), i32 %9) nounwind ; <i32> [#uses=0]
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store i32 0, i32* %0, align 4
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%11 = load i32* %0, align 4 ; <i32> [#uses=1]
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store i32 %11, i32* %retval, align 4
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br label %return
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return: ; preds = %bb2
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%retval3 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval3
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}
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declare i32 @atoi(i8*)
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declare i32 @printf(i8*, ...) nounwind
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