; RUN: llc < %s
-; RUN: llc < %s -march=x86-64
+; RUN: llc < %s -march=x86-64 -verify-machineinstrs | FileCheck %s
; PR3538
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"
target triple = "i386-apple-darwin9"
- %llvm.dbg.anchor.type = type { i32, i32 }
- %llvm.dbg.basictype.type = type { i32, { }*, i8*, { }*, i32, i64, i64, i64, i32, i32 }
- %llvm.dbg.block.type = type { i32, { }* }
- %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8* }
- %llvm.dbg.composite.type = type { i32, { }*, i8*, { }*, i32, i64, i64, i64, i32, { }*, { }* }
- %llvm.dbg.subprogram.type = type { i32, { }*, { }*, i8*, i8*, i8*, { }*, i32, { }*, i1, i1 }
- %llvm.dbg.subrange.type = type { i32, i64, i64 }
- %llvm.dbg.variable.type = type { i32, { }*, i8*, { }*, i32, { }* }
-@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
-@.str = internal constant [4 x i8] c"t.c\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
-@.str1 = internal constant [2 x i8] c".\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
-@.str2 = internal constant [6 x i8] c"clang\00", section "llvm.metadata" ; <[6 x i8]*> [#uses=1]
-@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([2 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([6 x i8]* @.str2, i32 0, i32 0), i1 false, i1 false, i8* null }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1]
-@.str3 = internal constant [4 x i8] c"int\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
-@llvm.dbg.basictype = internal constant %llvm.dbg.basictype.type { i32 458788, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 0, i64 32, i64 32, i64 0, i32 0, i32 5 }, section "llvm.metadata" ; <%llvm.dbg.basictype.type*> [#uses=1]
-@llvm.dbg.subprograms = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 46 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
-@.str4 = internal constant [5 x i8] c"test\00", section "llvm.metadata" ; <[5 x i8]*> [#uses=1]
-@llvm.dbg.subprogram = internal constant %llvm.dbg.subprogram.type { i32 458798, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.subprograms to { }*), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([5 x i8]* @.str4, i32 0, i32 0), i8* getelementptr ([5 x i8]* @.str4, i32 0, i32 0), i8* null, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 3, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*), i1 false, i1 true }, section "llvm.metadata" ; <%llvm.dbg.subprogram.type*> [#uses=1]
-@.str5 = internal constant [2 x i8] c"X\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
-@llvm.dbg.variable = internal constant %llvm.dbg.variable.type { i32 459009, { }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*), i8* getelementptr ([2 x i8]* @.str5, i32 0, i32 0), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 3, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*) }, section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=1]
-@llvm.dbg.block = internal constant %llvm.dbg.block.type { i32 458763, { }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*) }, section "llvm.metadata" ; <%llvm.dbg.block.type*> [#uses=1]
-@llvm.dbg.subrange = internal constant %llvm.dbg.subrange.type { i32 458785, i64 0, i64 0 }, section "llvm.metadata" ; <%llvm.dbg.subrange.type*> [#uses=1]
-@llvm.dbg.array = internal constant [1 x { }*] [{ }* bitcast (%llvm.dbg.subrange.type* @llvm.dbg.subrange to { }*)], section "llvm.metadata" ; <[1 x { }*]*> [#uses=1]
-@llvm.dbg.composite = internal constant %llvm.dbg.composite.type { i32 458753, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* null, { }* null, i32 0, i64 0, i64 32, i64 0, i32 0, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*), { }* bitcast ([1 x { }*]* @llvm.dbg.array to { }*) }, section "llvm.metadata" ; <%llvm.dbg.composite.type*> [#uses=1]
-@.str6 = internal constant [2 x i8] c"Y\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
-@llvm.dbg.variable7 = internal constant %llvm.dbg.variable.type { i32 459008, { }* bitcast (%llvm.dbg.block.type* @llvm.dbg.block to { }*), i8* getelementptr ([2 x i8]* @.str6, i32 0, i32 0), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 4, { }* bitcast (%llvm.dbg.composite.type* @llvm.dbg.composite to { }*) }, section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=1]
+define signext i8 @foo(i8* %s1) nounwind ssp {
-define i32 @test(i32 %X) nounwind {
-entry:
- %retval = alloca i32 ; <i32*> [#uses=1]
- %X.addr = alloca i32 ; <i32*> [#uses=3]
- %saved_stack = alloca i8* ; <i8**> [#uses=2]
- call void @llvm.dbg.func.start({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*))
- store i32 %X, i32* %X.addr
- %0 = bitcast i32* %X.addr to { }* ; <{ }*> [#uses=1]
- call void @llvm.dbg.declare({ }* %0, { }* bitcast (%llvm.dbg.variable.type* @llvm.dbg.variable to { }*))
- call void @llvm.dbg.region.start({ }* bitcast (%llvm.dbg.block.type* @llvm.dbg.block to { }*))
- call void @llvm.dbg.stoppoint(i32 4, i32 3, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
- %1 = call i8* @llvm.stacksave() ; <i8*> [#uses=1]
- store i8* %1, i8** %saved_stack
- %tmp = load i32* %X.addr ; <i32> [#uses=1]
- %2 = mul i32 4, %tmp ; <i32> [#uses=1]
- %vla = alloca i8, i32 %2 ; <i8*> [#uses=1]
- %tmp1 = bitcast i8* %vla to i32* ; <i32*> [#uses=1]
- %3 = bitcast i32* %tmp1 to { }* ; <{ }*> [#uses=1]
- call void @llvm.dbg.declare({ }* %3, { }* bitcast (%llvm.dbg.variable.type* @llvm.dbg.variable7 to { }*))
- call void @llvm.dbg.stoppoint(i32 5, i32 1, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
- call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.block.type* @llvm.dbg.block to { }*))
- br label %cleanup
-
-cleanup: ; preds = %entry
- %tmp2 = load i8** %saved_stack ; <i8*> [#uses=1]
- call void @llvm.stackrestore(i8* %tmp2)
- call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*))
- %4 = load i32* %retval ; <i32> [#uses=1]
- ret i32 %4
-}
+; Make sure we generate:
+; movq -40(%rbp), %rsp
+; Instead of:
+; movq -40(%rbp), %rax
+; movq %rax, %rsp
-declare void @llvm.dbg.func.start({ }*) nounwind
+; CHECK-LABEL: @foo
+; CHECK: movq -40(%rbp), %rsp
-declare void @llvm.dbg.declare({ }*, { }*) nounwind
+entry:
+ %s1_addr = alloca i8* ; <i8**> [#uses=2]
+ %retval = alloca i32 ; <i32*> [#uses=2]
+ %saved_stack.1 = alloca i8* ; <i8**> [#uses=2]
+ %0 = alloca i32 ; <i32*> [#uses=2]
+ %str.0 = alloca [0 x i8]* ; <[0 x i8]**> [#uses=3]
+ %1 = alloca i64 ; <i64*> [#uses=2]
+ %2 = alloca i64 ; <i64*> [#uses=1]
+ %3 = alloca i64 ; <i64*> [#uses=6]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ call void @llvm.dbg.declare(metadata i8** %s1_addr, metadata !0, metadata !DIExpression()), !dbg !7
+ store i8* %s1, i8** %s1_addr
+ call void @llvm.dbg.declare(metadata [0 x i8]** %str.0, metadata !8, metadata !DIExpression()), !dbg !7
+ %4 = call i8* @llvm.stacksave(), !dbg !7 ; <i8*> [#uses=1]
+ store i8* %4, i8** %saved_stack.1, align 8, !dbg !7
+ %5 = load i8*, i8** %s1_addr, align 8, !dbg !13 ; <i8*> [#uses=1]
+ %6 = call i64 @strlen(i8* %5) nounwind readonly, !dbg !13 ; <i64> [#uses=1]
+ %7 = add i64 %6, 1, !dbg !13 ; <i64> [#uses=1]
+ store i64 %7, i64* %3, align 8, !dbg !13
+ %8 = load i64, i64* %3, align 8, !dbg !13 ; <i64> [#uses=1]
+ %9 = sub nsw i64 %8, 1, !dbg !13 ; <i64> [#uses=0]
+ %10 = load i64, i64* %3, align 8, !dbg !13 ; <i64> [#uses=1]
+ %11 = mul i64 %10, 8, !dbg !13 ; <i64> [#uses=0]
+ %12 = load i64, i64* %3, align 8, !dbg !13 ; <i64> [#uses=1]
+ store i64 %12, i64* %2, align 8, !dbg !13
+ %13 = load i64, i64* %3, align 8, !dbg !13 ; <i64> [#uses=1]
+ %14 = mul i64 %13, 8, !dbg !13 ; <i64> [#uses=0]
+ %15 = load i64, i64* %3, align 8, !dbg !13 ; <i64> [#uses=1]
+ store i64 %15, i64* %1, align 8, !dbg !13
+ %16 = load i64, i64* %1, align 8, !dbg !13 ; <i64> [#uses=1]
+ %17 = trunc i64 %16 to i32, !dbg !13 ; <i32> [#uses=1]
+ %18 = alloca i8, i32 %17, !dbg !13 ; <i8*> [#uses=1]
+ %19 = bitcast i8* %18 to [0 x i8]*, !dbg !13 ; <[0 x i8]*> [#uses=1]
+ store [0 x i8]* %19, [0 x i8]** %str.0, align 8, !dbg !13
+ %20 = load [0 x i8]*, [0 x i8]** %str.0, align 8, !dbg !15 ; <[0 x i8]*> [#uses=1]
+ %21 = getelementptr inbounds [0 x i8], [0 x i8]* %20, i64 0, i64 0, !dbg !15 ; <i8*> [#uses=1]
+ store i8 0, i8* %21, align 1, !dbg !15
+ %22 = load [0 x i8]*, [0 x i8]** %str.0, align 8, !dbg !16 ; <[0 x i8]*> [#uses=1]
+ %23 = getelementptr inbounds [0 x i8], [0 x i8]* %22, i64 0, i64 0, !dbg !16 ; <i8*> [#uses=1]
+ %24 = load i8, i8* %23, align 1, !dbg !16 ; <i8> [#uses=1]
+ %25 = sext i8 %24 to i32, !dbg !16 ; <i32> [#uses=1]
+ store i32 %25, i32* %0, align 4, !dbg !16
+ %26 = load i8*, i8** %saved_stack.1, align 8, !dbg !16 ; <i8*> [#uses=1]
+ call void @llvm.stackrestore(i8* %26), !dbg !16
+ %27 = load i32, i32* %0, align 4, !dbg !16 ; <i32> [#uses=1]
+ store i32 %27, i32* %retval, align 4, !dbg !16
+ br label %return, !dbg !16
-declare void @llvm.dbg.region.start({ }*) nounwind
+return: ; preds = %entry
+ %retval1 = load i32, i32* %retval, !dbg !16 ; <i32> [#uses=1]
+ %retval12 = trunc i32 %retval1 to i8, !dbg !16 ; <i8> [#uses=1]
+ ret i8 %retval12, !dbg !16
+}
-declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
+declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
declare i8* @llvm.stacksave() nounwind
+declare i64 @strlen(i8*) nounwind readonly
+
declare void @llvm.stackrestore(i8*) nounwind
-declare void @llvm.dbg.region.end({ }*) nounwind
+!0 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "s1", line: 2, arg: 1, scope: !1, file: !2, type: !6)
+!1 = !DISubprogram(name: "foo", linkageName: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !2, type: !3)
+!2 = !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !17, enums: !18, retainedTypes: !18)
+!3 = !DISubroutineType(types: !4)
+!4 = !{!5, !6}
+!5 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
+!6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !2, baseType: !5)
+!7 = !DILocation(line: 2, scope: !1)
+!8 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "str.0", line: 3, scope: !1, file: !2, type: !9)
+!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, scope: !2, baseType: !10)
+!10 = !DICompositeType(tag: DW_TAG_array_type, size: 8, align: 8, scope: !2, baseType: !5, elements: !11)
+!11 = !{!12}
+!12 = !DISubrange(count: 1)
+!13 = !DILocation(line: 3, scope: !14)
+!14 = distinct !DILexicalBlock(line: 0, column: 0, file: !17, scope: !1)
+!15 = !DILocation(line: 4, scope: !14)
+!16 = !DILocation(line: 5, scope: !14)
+!17 = !DIFile(filename: "vla.c", directory: "/tmp/")
+!18 = !{i32 0}
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