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Optimize temp variables in LLVM.

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This commit is contained in:
Christoffer Lerno
2025-01-06 04:03:54 +01:00
committed by Christoffer Lerno
parent ea2dce0ab4
commit f801372074
25 changed files with 1504 additions and 1624 deletions
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45
test/test_suite/debug_symbols/foreach.c3t
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@@ -16,49 +16,46 @@ define void @test.foo(ptr %0, i64 %1) #0 !dbg !8 {
entry:
%args = alloca %"char[][]", align 8
%.anon = alloca i64, align 8
%.anon2 = alloca i64, align 8
%a = alloca %"char[]", align 8
%x = alloca i32, align 4
store ptr %0, ptr %args, align 8
%ptradd = getelementptr inbounds i8, ptr %args, i64 8
store i64 %1, ptr %ptradd, align 8
%ptradd1 = getelementptr inbounds i8, ptr %args, i64 8, !dbg !30
%2 = load i64, ptr %ptradd1, align 8, !dbg !30
store i64 %2, ptr %.anon, align 8, !dbg !30
store i64 0, ptr %.anon2, align 8, !dbg !30
br label %loop.cond, !dbg !30
%ptradd1 = getelementptr inbounds i8, ptr %args, i64 8, !dbg !28
%2 = load i64, ptr %ptradd1, align 8, !dbg !28
store i64 0, ptr %.anon, align 8, !dbg !28
br label %loop.cond, !dbg !28
loop.cond: ; preds = %loop.body, %entry
%3 = load i64, ptr %.anon2, align 8, !dbg !30
%4 = load i64, ptr %.anon, align 8, !dbg !30
%lt = icmp ult i64 %3, %4, !dbg !30
br i1 %lt, label %loop.body, label %loop.exit, !dbg !30
%3 = load i64, ptr %.anon, align 8, !dbg !28
%lt = icmp ult i64 %3, %2, !dbg !28
br i1 %lt, label %loop.body, label %loop.exit, !dbg !28
loop.body: ; preds = %loop.cond
%5 = load ptr, ptr %args, align 8, !dbg !34
%6 = load i64, ptr %.anon2, align 8, !dbg !34
%ptroffset = getelementptr inbounds [16 x i8], ptr %5, i64 %6, !dbg !34
%4 = load ptr, ptr %args, align 8, !dbg !34
%5 = load i64, ptr %.anon, align 8, !dbg !34
%ptroffset = getelementptr inbounds [16 x i8], ptr %4, i64 %5, !dbg !34
call void @llvm.memcpy.p0.p0.i32(ptr align 8 %a, ptr align 8 %ptroffset, i32 16, i1 false), !dbg !34
%ptradd3 = getelementptr inbounds i8, ptr %a, i64 8, !dbg !39
%7 = load i64, ptr %ptradd3, align 8, !dbg !39
%trunc = trunc i64 %7 to i32, !dbg !39
%ptradd2 = getelementptr inbounds i8, ptr %a, i64 8, !dbg !39
%6 = load i64, ptr %ptradd2, align 8, !dbg !39
%trunc = trunc i64 %6 to i32, !dbg !39
store i32 %trunc, ptr %x, align 4, !dbg !39
%8 = load i64, ptr %.anon2, align 8, !dbg !30
%addnuw = add nuw i64 %8, 1, !dbg !30
store i64 %addnuw, ptr %.anon2, align 8, !dbg !30
br label %loop.cond, !dbg !30
%7 = load i64, ptr %.anon, align 8, !dbg !28
%addnuw = add nuw i64 %7, 1, !dbg !28
store i64 %addnuw, ptr %.anon, align 8, !dbg !28
br label %loop.cond, !dbg !28
loop.exit: ; preds = %loop.cond
ret void, !dbg !30
ret void, !dbg !28
}
!24 = !DIDerivedType(tag: DW_TAG_member, name: "len", scope: !11, baseType: !22, size: 64, align: 64, offset: 64)
!25 = !{}
!26 = !DILocalVariable(name: "args", arg: 1, scope: !8, file: !7, line: 3, type: !11)
!27 = !DILocation(line: 3, column: 22, scope: !8)
!28 = !DILocalVariable(name: ".temp", scope: !29, file: !7, line: 5, type: !22, align: 8)
!28 = !DILocation(line: 5, column: 15, scope: !29)
!29 = distinct !DILexicalBlock(scope: !8, file: !7, line: 5, column: 2)
!30 = !DILocation(line: 5, column: 15, scope: !29)
!30 = !DILocalVariable(name: ".temp", scope: !29, file: !7, line: 5, type: !22, align: 8)
!31 = !DILocalVariable(name: "a", scope: !32, file: !7, line: 5, type: !15, align: 8)
!32 = distinct !DILexicalBlock(scope: !29, file: !7, line: 6, column: 2)
!33 = !DILocation(line: 5, column: 11, scope: !32)
@@ -67,4 +64,4 @@ loop.exit: ; preds = %loop.cond
!36 = distinct !DILexicalBlock(scope: !32, file: !7, line: 6, column: 2)
!37 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!38 = !DILocation(line: 7, column: 7, scope: !36)
!39 = !DILocation(line: 7, column: 11, scope: !36)
!39 = !DILocation(line: 7, column: 11, scope: !36)