94 lines
3.2 KiB
LLVM
94 lines
3.2 KiB
LLVM
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; RUN: llc -march=hexagon -mtriple=hexagon-unknown-linux-musl < %s | FileCheck %s
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; Check that we update the stack pointer before we do allocframe, so that
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; the LR/FP are stored in the location required by the Linux ABI.
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; CHECK: r29 = add(r29,#-24)
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; CHECK: allocframe
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target triple = "hexagon-unknown-linux"
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%s.0 = type { i8*, i8*, i8* }
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define dso_local i32 @f0(i32 %a0, ...) local_unnamed_addr #0 {
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b0:
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%v0 = alloca [1 x %s.0], align 8
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%v1 = bitcast [1 x %s.0]* %v0 to i8*
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call void @llvm.lifetime.start.p0i8(i64 12, i8* nonnull %v1) #2
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call void @llvm.va_start(i8* nonnull %v1)
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%v2 = getelementptr inbounds [1 x %s.0], [1 x %s.0]* %v0, i32 0, i32 0, i32 0
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%v3 = load i8*, i8** %v2, align 8
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%v4 = getelementptr inbounds [1 x %s.0], [1 x %s.0]* %v0, i32 0, i32 0, i32 1
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%v5 = load i8*, i8** %v4, align 4
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%v6 = getelementptr i8, i8* %v3, i32 4
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%v7 = icmp sgt i8* %v6, %v5
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br i1 %v7, label %b1, label %b2
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b1: ; preds = %b0
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%v8 = getelementptr inbounds [1 x %s.0], [1 x %s.0]* %v0, i32 0, i32 0, i32 2
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%v9 = load i8*, i8** %v8, align 8
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%v10 = getelementptr i8, i8* %v9, i32 4
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store i8* %v10, i8** %v8, align 8
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br label %b2
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b2: ; preds = %b1, %b0
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%v11 = phi i8* [ %v10, %b1 ], [ %v6, %b0 ]
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%v12 = phi i8* [ %v9, %b1 ], [ %v3, %b0 ]
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%v13 = bitcast i8* %v12 to i32*
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store i8* %v11, i8** %v2, align 8
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%v14 = load i32, i32* %v13, align 4
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%v15 = icmp eq i32 %v14, 0
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br i1 %v15, label %b7, label %b3
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b3: ; preds = %b2
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%v16 = getelementptr inbounds [1 x %s.0], [1 x %s.0]* %v0, i32 0, i32 0, i32 2
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br label %b4
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b4: ; preds = %b6, %b3
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%v17 = phi i32 [ %v14, %b3 ], [ %v28, %b6 ]
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%v18 = phi i32 [ %a0, %b3 ], [ %v20, %b6 ]
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%v19 = phi i8* [ %v11, %b3 ], [ %v25, %b6 ]
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%v20 = add nsw i32 %v17, %v18
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%v21 = getelementptr i8, i8* %v19, i32 4
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%v22 = icmp sgt i8* %v21, %v5
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br i1 %v22, label %b5, label %b6
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b5: ; preds = %b4
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%v23 = load i8*, i8** %v16, align 8
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%v24 = getelementptr i8, i8* %v23, i32 4
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store i8* %v24, i8** %v16, align 8
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br label %b6
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b6: ; preds = %b5, %b4
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%v25 = phi i8* [ %v24, %b5 ], [ %v21, %b4 ]
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%v26 = phi i8* [ %v23, %b5 ], [ %v19, %b4 ]
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%v27 = bitcast i8* %v26 to i32*
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store i8* %v25, i8** %v2, align 8
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%v28 = load i32, i32* %v27, align 4
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%v29 = icmp eq i32 %v28, 0
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br i1 %v29, label %b7, label %b4
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b7: ; preds = %b6, %b2
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%v30 = phi i32 [ %a0, %b2 ], [ %v20, %b6 ]
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call void @llvm.va_end(i8* nonnull %v1)
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call void @llvm.lifetime.end.p0i8(i64 12, i8* nonnull %v1) #2
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ret i32 %v30
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
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; Function Attrs: nounwind
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declare void @llvm.va_start(i8*) #2
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; Function Attrs: nounwind
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declare void @llvm.va_end(i8*) #2
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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attributes #0 = { argmemonly nounwind "frame-pointer"="all" }
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"wchar_size", i32 4}
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