ssa: compile go string constant without alloca
This commit is contained in:
Li Jie
@@ -33,83 +33,60 @@ _llgo_0:
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call void @main.init()
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%2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
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%3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 0
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%4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
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store ptr @0, ptr %5, align 8
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%6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
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store i64 1, ptr %6, align 4
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%7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
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store %"github.com/goplus/llgo/internal/runtime.String" %7, ptr %3, align 8
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%8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 1
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%9 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 0
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store ptr @1, ptr %10, align 8
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%11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %9, i32 0, i32 1
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store i64 1, ptr %11, align 4
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%12 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %9, align 8
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store %"github.com/goplus/llgo/internal/runtime.String" %12, ptr %8, align 8
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%13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 2
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%14 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%15 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 0
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store ptr @2, ptr %15, align 8
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%16 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %14, i32 0, i32 1
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store i64 1, ptr %16, align 4
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%17 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %14, align 8
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store %"github.com/goplus/llgo/internal/runtime.String" %17, ptr %13, align 8
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%18 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
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%19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 0
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store ptr %2, ptr %19, align 8
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%20 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 1
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store i64 3, ptr %20, align 4
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%21 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, i32 0, i32 2
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store i64 3, ptr %21, align 4
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%22 = load %"github.com/goplus/llgo/internal/runtime.Slice", ptr %18, align 8
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%23 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %22, 1
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%24 = add i64 %23, 1
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%25 = alloca ptr, i64 %24, align 8
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store %"github.com/goplus/llgo/internal/runtime.String" { ptr @0, i64 1 }, ptr %3, align 8
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%4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 1
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store %"github.com/goplus/llgo/internal/runtime.String" { ptr @1, i64 1 }, ptr %4, align 8
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%5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i64 2
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store %"github.com/goplus/llgo/internal/runtime.String" { ptr @2, i64 1 }, ptr %5, align 8
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%6 = insertvalue %"github.com/goplus/llgo/internal/runtime.Slice" undef, ptr %2, 0
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%7 = insertvalue %"github.com/goplus/llgo/internal/runtime.Slice" %6, i64 3, 1
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%8 = insertvalue %"github.com/goplus/llgo/internal/runtime.Slice" %7, i64 3, 2
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%9 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %8, 1
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%10 = add i64 %9, 1
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%11 = alloca ptr, i64 %10, align 8
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br label %_llgo_4
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_llgo_1: ; preds = %_llgo_3, %_llgo_6
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%26 = phi i64 [ 0, %_llgo_6 ], [ %31, %_llgo_3 ]
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%27 = getelementptr ptr, ptr %25, i64 %26
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%28 = load ptr, ptr %27, align 8
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%29 = icmp eq ptr %28, null
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br i1 %29, label %_llgo_2, label %_llgo_3
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%12 = phi i64 [ 0, %_llgo_6 ], [ %17, %_llgo_3 ]
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%13 = getelementptr ptr, ptr %11, i64 %12
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%14 = load ptr, ptr %13, align 8
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%15 = icmp eq ptr %14, null
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br i1 %15, label %_llgo_2, label %_llgo_3
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_llgo_2: ; preds = %_llgo_1
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ret i32 0
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_llgo_3: ; preds = %_llgo_1
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%30 = call i32 (ptr, ...) @printf(ptr @3, ptr %28)
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%31 = add i64 %26, 1
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%16 = call i32 (ptr, ...) @printf(ptr @3, ptr %14)
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%17 = add i64 %12, 1
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br label %_llgo_1
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_llgo_4: ; preds = %_llgo_5, %_llgo_0
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%32 = phi i64 [ 0, %_llgo_0 ], [ %46, %_llgo_5 ]
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%33 = icmp slt i64 %32, %23
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br i1 %33, label %_llgo_5, label %_llgo_6
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%18 = phi i64 [ 0, %_llgo_0 ], [ %32, %_llgo_5 ]
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%19 = icmp slt i64 %18, %9
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br i1 %19, label %_llgo_5, label %_llgo_6
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_llgo_5: ; preds = %_llgo_4
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%34 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %22, 0
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%35 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %22, 1
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%36 = icmp slt i64 %32, 0
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%37 = icmp sge i64 %32, %35
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%38 = or i1 %37, %36
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call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %38)
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%39 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %34, i64 %32
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%40 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %39, align 8
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%41 = getelementptr ptr, ptr %25, i64 %32
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%42 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %40, 1
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%43 = add i64 %42, 1
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%44 = alloca i8, i64 %43, align 1
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%45 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %44, %"github.com/goplus/llgo/internal/runtime.String" %40)
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store ptr %45, ptr %41, align 8
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%46 = add i64 %32, 1
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%20 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %8, 0
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%21 = extractvalue %"github.com/goplus/llgo/internal/runtime.Slice" %8, 1
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%22 = icmp slt i64 %18, 0
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%23 = icmp sge i64 %18, %21
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%24 = or i1 %23, %22
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call void @"github.com/goplus/llgo/internal/runtime.AssertIndexRange"(i1 %24)
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%25 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %20, i64 %18
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%26 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %25, align 8
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%27 = getelementptr ptr, ptr %11, i64 %18
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%28 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %26, 1
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%29 = add i64 %28, 1
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%30 = alloca i8, i64 %29, align 1
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%31 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %30, %"github.com/goplus/llgo/internal/runtime.String" %26)
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store ptr %31, ptr %27, align 8
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%32 = add i64 %18, 1
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br label %_llgo_4
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_llgo_6: ; preds = %_llgo_4
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%47 = getelementptr ptr, ptr %25, i64 %23
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store ptr null, ptr %47, align 8
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%33 = getelementptr ptr, ptr %11, i64 %9
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store ptr null, ptr %33, align 8
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br label %_llgo_1
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}
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