forked from OSchip/llvm-project
108 lines
3.2 KiB
LLVM
108 lines
3.2 KiB
LLVM
; RUN: opt < %s -partial-inliner -S -skip-partial-inlining-cost-analysis | FileCheck %s
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; RUN: opt < %s -passes=partial-inliner -S -skip-partial-inlining-cost-analysis | FileCheck %s
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@stat = external global i32, align 4
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define i32 @vararg(i32 %count, ...) {
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entry:
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%vargs = alloca i8*, align 8
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%stat1 = load i32, i32* @stat, align 4
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%cmp = icmp slt i32 %stat1, 0
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br i1 %cmp, label %bb2, label %bb1
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bb1: ; preds = %entry
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%vg1 = add nsw i32 %stat1, 1
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store i32 %vg1, i32* @stat, align 4
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%vargs1 = bitcast i8** %vargs to i8*
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call void @llvm.va_start(i8* %vargs1)
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%va1 = va_arg i8** %vargs, i32
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call void @foo(i32 %count, i32 %va1) #2
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call void @llvm.va_end(i8* %vargs1)
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br label %bb2
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bb2: ; preds = %bb1, %entry
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%res = phi i32 [ 1, %bb1 ], [ 0, %entry ]
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ret i32 %res
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}
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declare void @foo(i32, i32)
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declare void @llvm.va_start(i8*)
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declare void @llvm.va_end(i8*)
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define i32 @caller1(i32 %arg) {
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bb:
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%tmp = tail call i32 (i32, ...) @vararg(i32 %arg)
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ret i32 %tmp
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}
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; CHECK-LABEL: @caller1
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; CHECK: codeRepl.i:
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; CHECK-NEXT: call void (i32, i8**, i32, ...) @vararg.3.bb1(i32 %stat1.i, i8** %vargs.i, i32 %arg)
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define i32 @caller2(i32 %arg, float %arg2) {
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bb:
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%tmp = tail call i32 (i32, ...) @vararg(i32 %arg, i32 10, float %arg2)
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ret i32 %tmp
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}
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; CHECK-LABEL: @caller2
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; CHECK: codeRepl.i:
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; CHECK-NEXT: call void (i32, i8**, i32, ...) @vararg.3.bb1(i32 %stat1.i, i8** %vargs.i, i32 %arg, i32 10, float %arg2)
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; Test case to check that we do not extract a vararg function, if va_end is in
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; a block that is not outlined.
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define i32 @vararg_not_legal(i32 %count, ...) {
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entry:
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%vargs = alloca i8*, align 8
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%vargs0 = bitcast i8** %vargs to i8*
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%stat1 = load i32, i32* @stat, align 4
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%cmp = icmp slt i32 %stat1, 0
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br i1 %cmp, label %bb2, label %bb1
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bb1: ; preds = %entry
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%vg1 = add nsw i32 %stat1, 1
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store i32 %vg1, i32* @stat, align 4
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%vargs1 = bitcast i8** %vargs to i8*
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call void @llvm.va_start(i8* %vargs1)
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%va1 = va_arg i8** %vargs, i32
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call void @foo(i32 %count, i32 %va1)
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br label %bb2
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bb2: ; preds = %bb1, %entry
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%res = phi i32 [ 1, %bb1 ], [ 0, %entry ]
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%ptr = phi i8* [ %vargs1, %bb1 ], [ %vargs0, %entry]
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call void @llvm.va_end(i8* %ptr)
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ret i32 %res
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}
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; CHECK-LABEL: @caller3
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; CHECK: tail call i32 (i32, ...) @vararg_not_legal(i32 %arg, i32 %arg)
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define i32 @caller3(i32 %arg) {
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bb:
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%res = tail call i32 (i32, ...) @vararg_not_legal(i32 %arg, i32 %arg)
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ret i32 %res
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}
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declare i32* @err(i32*)
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define signext i32 @vararg2(i32 * %l, ...) {
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entry:
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br i1 undef, label %cleanup, label %cond.end
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cond.end: ; preds = %entry
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%call51 = call i32* @err(i32* nonnull %l)
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unreachable
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cleanup: ; preds = %entry
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ret i32 0
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}
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define i32* @caller_with_signext(i32* %foo) {
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entry:
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%call1 = tail call signext i32 (i32*, ...) @vararg2(i32* %foo, i32 signext 8)
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unreachable
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}
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; CHECK-LABEL: @caller_with_signext
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; CHECK: codeRepl.i:
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; CHECK-NEXT: call void (i32*, ...) @vararg2.1.cond.end(i32* %foo, i32 signext 8)
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